All Reviews for Private Boat Charters

I gathered at the port, which is about a 10-minute drive from the hotel in Kona! There were so few Japanese people that I felt a sense of relief in an environment where Japanese could be spoken.

At first, we had a hard time finding the dolphin spot and kept cruising around the Waikoloa area. Just when I started to worry, the boat stopped, and we entered the water!

When we dove in at the call of "Here they come!", a large number of dolphins swam towards us!!!! The dolphins, which I usually only see in the aquarium, swam towards us leisurely and happily.

They twirled around, jumped, and swam close together, and it was such a precious experience that was incredibly cute!!! Thank you, Lei and Aki, for sharing so many stories and for being such warm-hearted people. I had a wonderful time! Thank you very much!

コナのホテルから車で10分くらいの港に現地集合で行きました！探さないと日本人が見つからない位の少なさの中で、日本語が通じる環境に安心感、、^o^
最初はなかなかイルカのポイントが見つからず、ワイコロア周辺まで船で走り続け、心配になってきたところで船が止まり、海に入ります。！
来ましたよ〜！の声で海に潜ると、大量のイルカたちがこっちに向かってきました！！！！
普段は水族館のプールの中でしか見たことのないイルカたちが、のんびりと、楽しそうにこっちに向かって泳いできました。
くるくると回ったり、飛び跳ねたり、2頭で身体をくっつけて泳いだり、可愛くて可愛くて、とても貴重な体験をしました！！！
レイさん、アキさん、いろんな話を聞かせてもらい、とても柔らかい人柄で楽しく過ごせました。本当にありがとうございました！

Unlimited drinks and snacks, and since we couldn't see any whales, we were allowed to repeat the experience for free four times. The staff were all kind and it was the best!

ドリンク飲み放題、お菓子食べ放題、クジラ見れなかったため、4回も無料でリピートさせていただきました。スタッフもみんな親切でさいこうです

I wasn't able to see any whales this time, but I didn't have high expectations from the start, so I participated with the mindset of at least seeing dolphins while cruising. I was able to see a pod of dolphins and some turtles, which was just as I expected.

At the end, since I didn't see any whales, the explanation for a re-challenge was in English, and I couldn't understand it. It seems that since this is the last of the season, I won't be able to re-challenge this season. So, I think it means that if I show this ticket next time, I might get a discount? I would like to know the correct information. Also, how should I communicate that I have the ticket for the next time?

時期的にクジラはやっぱり会えなかったんですが、まあ最初から期待はしてなく最悪イルカとクルージングって感じで参加しました。
イルカの群れと亀が会え、思った通りでした。
最後にクジラに会えなかったので、再チャレンジの説明が英語で、わからなかったのですが、どうやら、今シーズン最終なので、今シーズンで再チャレンジができない。よって次回このチケットを見せればディスカウント？みたいなことかなと。正解を教えてほしいです。また次回ってどうやってチケット持ってることを伝えたらいいんでしょうか？

The meeting at the Port Allen office was scheduled for 3:00 PM, but I parked a bit early at 2:30 PM in the parking lot behind the "Holo Holo Charters" sign in the back of the building. There were quite a few cars, so it was good that I arrived early to park.

Before the meeting, I checked in at the office. I signed the "consent form" on a touch panel and wandered around the nearby shops until the meeting time. The restroom is located behind the office.

When it was time, we gathered in the square in front of the office, and the captain called out names, to which we responded. After roll call, we headed to the port. Before boarding, we took off our shoes and placed them in a shoe bin to go barefoot. It was a good decision to wear flip-flops.

Those who boarded early went to the back of the boat. We didn't make it in time and ended up sitting at a table inside, but it turned out to be convenient during the meal. We could move around during the trip and enjoy the scenery.

As soon as we set off, we were served alcohol, soft drinks, crackers, and cheese. We moved quickly towards the Na Pali Coast. The view of the Na Pali Coast from the boat was breathtaking!

On the way back, we had dinner (tacos) and were also given cookies. (Some people put their cookies in a paper plate and Ziploc bag to take home.) Throughout the trip, drinks were available for free. There were also two restrooms, so it was comfortable to drink.

Although we didn't see any dolphins, we were lucky to spot whales a few times even though it was May. The sunset that day was truly wonderful, with no clouds to obstruct the view.

It became a great memory of Kauai. We returned to the port around 7:30 PM after about four hours on the water. Since the boat was constantly moving, I think those who are prone to seasickness should take medication.

The inside of the boat with a roof wasn't cold, but since it was moving, I recommend bringing a light windbreaker to enjoy the view. Some people might also need sunscreen.

We were the only Japanese people on board, and everything was in English, but the two crew members were very kind, and the service was excellent, making for a really enjoyable time.

ポートアーレン事務所集合15:00でしたが、少し早めの14:30に建物の奥の「Holo Holo Charters」の看板の駐車場に停めます。
割と車が多いので、早めに駐車して良かったです。
集合前に、事務所でチェックイン。
タッチパネルで「同意書」にサインし、集合時間まで、近くのショップをウロウロ。
トイレは事務所の裏にあります。
時間になり、事務所前の広場で集合し船長さんが名前を呼ぶので、返事をします。
点呼が終わったら、港へ。乗船する前に靴入れに靴を脱いで専用の裸足になります。
ビーチサンダルで行き正解でした。
早めに乗船した人は、船の後ろへ
私達は間に合わず、中のテーブルがある席に座りましたが、結果食事の際など便利。途中移動できるので、景色の十分楽しみます。
出発してすぐに、アルコールやソフトドリンク、クラッカーとチーズなどのサービス。
ナパリコーストまでどんどん移動します。
目の前に広がる船から見るナパリコースト❗️景圧巻の景色でした。
帰りに夕食(タコスでした)を食べながら、戻ります。クッキーも配られました。
(紙皿ジプロックにいれて、持って帰る人もいました)その間中、フリードリンクです。
トイレも2つあり、安心して飲めます。
イルカは見れませんでしたが、5月だったのにクジラを数回見る事が出来ラッキーでした。
サンセットもこの日は雲の邪魔なく、本当に素晴らしかったです。
カウアイ島での良い思い出になりました。
港に戻ったのは、19:30頃。4時間くらい乗ってます。ずっと走っているのて、揺れるので船酔いが心配な人は、薬を飲んだ方が良いと思います。
屋根のある船の中は寒くありませんが、走っているので景色を見る時に、薄手のウインドブレーカーは必ず持っていく事をオススメします。
日焼けも必要な方はいるかも。
日本人は私達だけで、全て英語でしたがクルーの方2名がとても親切で、サービスもよくとっても楽しい時間を過ごせました。

I felt the guides' love for the dolphins. We were blessed with good weather and encountered many dolphins. Daisuke and Rei were amazing.

ガイドの方たちのイルカへの愛を感じました。お天気にも恵まれて、たくさんのイルカに出会えました。ダイスケさん、レイさん、最高です。

The guide, Daisuke, was knowledgeable about dolphins, and we were able to see many dolphins. Thank you very much. I would like to participate again.

ガイドのDAISUKEさんはイルカに詳しく、沢山のイルカを見ることが出来ました。
ありがとうございました。
また、参加したいと思います。

We were caught in a little rain along the way, but the boat took us into the steep cliffs and the entrance of a cave, and I was overwhelmed by the beauty of nature. I even saw a whale's tail dancing on the surface of the water in the distance. On our way back, while watching the sunset over the sea and nearing the port, the last song that played was "Let It Be," which really touched me. The captain and the crew were all very friendly. I was disappointed that I couldn't drink beer since I had to drive. The parking lot is dark and not very busy at night, so be sure not to leave any valuables in the car.

途中少し雨に降られましたが、切り立った断崖や、洞窟の入り口まで船が入り、大自然に圧倒されました。遠くに鯨の尾びれが水面に舞うのも見れました。帰路につく中、海に沈む夕陽を見ながらもうすぐ港という時に、最後に流れた曲がLet it be、思わずジーンときました。船長もクルーも皆さんフレンドリーです。自分は運転しなければならなかったので、ビールが飲めなくて残念でした。駐車場は、夜は暗くて人気が少ないので、社内に貴重品を残さないように。

The view of the Na Pali Coast is amazing. It's definitely worth seeing at least once. Personally, I have experienced sunset cruises in Hawaii several times, but the sunset cruise in Maui, where I saw whales and dolphins, was incredible. There was live ukulele music on board playing EZ songs, which was great, but if you're just looking to see the Na Pali Coast, this cruise was fantastic.

ナパリコーストの眺めは 最高で。一度みる価値ありです。
私的には 何度かハワイのサンセットクルーズの経験ありますがマウイ島のサンセットクルーズで クジラやイルカを 見たのが凄すぎて 船内には ウクレレで
生演奏しながら EZの曲で それには
及ばないけど ナパリコーストみるだけなら最高な
クルーズでした。

A woman from the United States (about the size of a sumo wrestler) fell due to strong waves and started bleeding from her toes. The crew member (a fourth-generation Okinawan) responded promptly and effectively, which was impressive, especially while the yacht was rocking from the waves.

米国の女性（相撲取りくらいのサイズ）が、波が強くて転び、足の先から血が出てしまった際の、乗組員（沖縄４世）のてきぱきとした対応が素晴らしかった。（波でヨットが揺れながらの対応）

This was my second time whale watching, and although the number of whales was few, we were still able to see some. Above all, the staff member who generously applied sunscreen was very friendly, constantly asking if I wanted a beer or a refill, which made the experience enjoyable. My friend who came along was also pleased, so I think this is one of the classic tours in Honolulu. I highly recommend it.

ホエールウォッチングは2回目ですが、今回も数は少ないながら鯨を見ることができました。何より日焼け止めをたっぷり塗ったスタッフのおっちゃんがビールは飲むか?ビールのおかわりはどうだ?と、しきりに気を遣ってくれたのがとてもフレンドリーで楽しい気持ちになりました。連れて行った友達も喜んでくれたので、定番のホノルルツアーの1つかと思います。お勧めです。

Incredible service provided by Steve and Mario!! Loved the overall experience.

We had a “whaley” good time! Two humpback whales swam around, under, and emerged out of the water right next to our boat, swimming around us for about 20 minutes! We were fortunate to have a prolonged close-up encounter, within feet of these beautiful creatures. A large group of dolphins also swam by, jumping in and out of the water! The views were outstanding and our guides were a lot of fun, informative and very friendly! (I even dropped my sunglasses in the ocean and one of our guides managed to grab them before they sank-above and beyond!) The drinks and appetizers were delicious, and to top it off there were beautiful rainbows along the coast as we sailed along the sea! Sea Maui Sunset Sail was wonderful and our FAVORITE thing we did in Maui!

I participated alone at the recommendation of a friend, and everyone warmly welcomed me. I was anxious about meeting the dolphins, but I encountered a large group and was able to swim with them, which turned out to be a truly wonderful experience! I definitely want to come back again during summer vacation!

友人に勧められてひとりで参加しましたが、皆さまにあたたかく迎えて頂きました。イルカに会えるか不安でしたが、大群に遭遇して一緒に泳ぐことができてほんとに素晴らしい体験になりました！夏休みもまた是非来たいです♪

We saw so many whales and the crew was fabulous! We will do this again.

I was unsure of the meeting place and, despite not understanding English, I called and was guided until I arrived.

Although they didn't speak Japanese, their sincere assistance made it a pleasant experience to board, and I am truly grateful.

The boat was beautiful, and the crew was kind; I’m glad I chose the Honi Olani.

Whales...
It was an afternoon plan.
About ten minutes after departure, we saw a whale breaching, and after that, we spotted several blows, with a baby whale coming to play right next to the boat.
It was a unique experience thanks to the catamaran with a deck.

Seeing whales in nature is truly moving!

集合場所がわからず、英語がわからないながらも電話した所、つくまで誘導していただきました。
日本語は通じ無いですが、対応に誠意があり気持ちよく乗船することができ感謝しかないです。

船もキレイでクルーの方も親切でホニ・オラニ号にしてよかったです。

クジラ・・・
午後プランでした。
出向して10分くらいでクジラのブリーチング、その後は何頭ものブローが見え、子クジラが船の直ぐ横に遊びにきてくれました。
デッキ付きのカタマラン船ならではの体験でした。

自然の中で見るクジラの姿に感動します！

The ride was very calm and nice weather. The whales consisted of a baby and its mother which we only saw once. We were in only 45 foot deep water. That is not deep enough for the whales. It was a bust.

Since watching Jurassic Park, I had always wanted to visit the Na Pali Coast. However, my expectations were too high, and I was a bit disappointed. My daughters, who joined me, seemed to have a great time and were very excited. The crew members were also very kind, which was nice.

ジュラシックパークを見て以来いつかはきたいと思っていたナパリコースト。妄想が膨らみすぎてガッカリだった。一緒に参加した娘たちは大はしゃぎでとても楽しかったみたいです。クルーの方もとても親切でよかったです。

The scenery wasn't as impressive as I expected, but I was able to see whales in the distance. The staff were very good.

思ったほどの景色ではありませんでしたが、鯨を遠くに見ることができました。スタッフの方々はとてもよかったです。

It was the best experience!
The guide instructed us to get into the water when the dolphins arrived, so we were able to see them up close!
While we were on the boat, the guide also helped us look for marine life, and we got to see:
whales,
manta rays,
whale sharks!
I truly feel lucky.
Thank you so much for such a wonderful experience!

最高の一言です。
イルカが来るタイミングで海に降りるよう指示を出してくれるので、近くで見ることができました！
船に乗ってる間も、ガイドさんが生き物をさがしてくれて、
クジラ
マンタ
ジンベイザメ
を見れちゃいました！！
本当に幸運だったと思います。
こんなにステキな体験をさせていただきありがとうございました！

I actually wanted to go to Maui, but since I didn't have the time or money, I looked for tours on Oahu. I chose this tour on a whim, thinking that a smaller boat might allow for closer views than a larger one. Plus, it was a bit pricey for a morning tour to ensure I could board again if I didn't see anything. The hotel pickup was on time. I was unsure whether to wear flip-flops or shoes, but since I could leave my shoes before boarding, either option worked.

I thought we would go further out, but we only went to a point where we could see the hotels along Waikiki Beach, heading towards Diamond Head. After a while, I spotted the dorsal fin of a baby whale in the distance, and I was thrilled to see it raise its tail and dive! We stopped there and waited for it to resurface, but it never showed itself again.

We went a bit further but still didn't see any more whales, so we turned around to head back. On the way there and back, we saw a pod of dolphins swimming close enough to capture on camera. However, I was a bit disappointed that I didn't see more whales. I wondered if the larger, famous boat we passed had gone further or if the afternoon tour would have been better. I can't say for sure if my choice was the right one.

I want to feel satisfied that I saw at least one whale, but I can't shake the feeling that if we had gone further, we might have seen more. So, that's why I gave this rating. Well, I guess it's just the nature of wildlife (laughs).

本当はマウイに行きたかったけれど時間もお金も無いのでオアフ島でツアー探しました。
大きな船よりは小さいほうが至近距離で見れることもあるかと一か八かこのツアーにしました。
しかも見れなかった時に最乗船出来るように少々高い午前中のツアー。
ホテルへのお迎えも時間どおり。
ビーサンで行くか靴で行くか迷ったけど靴は乗船前に預かってもらえたからどちらでも。
もっと沖に行くのかと思いきや、ワイキキビーチのホテル群が見えるくらいの所をダイヤモンドヘッド方向に。
しばらくしたらやや遠くに子クジラの背鰭が見えて尾びれを上げて潜る所は見れて大興奮！
そこで停船し再浮上待つもその後姿を見せることはなく。
また少し先に行くも再びクジラを見ることはなく方向転換して帰路へ。
行きと帰りにイルカの群れが至近距離を泳ぐ姿はカメラにも納められるくらいの時間で見れました。
が、もうちょっとクジラを見れてれば、と思ってたので少しがっかり。
すれ違った大型の有名な船はもっと先まで行っていたのであちらのが良かったのか、はたまた午後のが良かったのか、と色々後悔とまではいかないけれど自分の選択が正解かどうかがわからない。
クジラが一回でも見れたから良しとしたいところですがあの一回が無ければもっと先に探しに行って貰えてもっと見れたのでは、などとのもやもやは消えず。なのでこの評価です。
まあ生き物なので仕方ないかな(笑)

I was really able to swim with dolphins. The experience was incredibly moving! Looking back now, I'm glad I was able to make a reservation!

Although I had no snorkeling experience and went out into the ocean, thanks to the support and advice from the swim instructor, I was ultimately able to see the dolphins up close, and I'm really glad I went!

The captain loves the ocean, dolphins, and whales more than anything, and I realized that because of that love, there is so much he can understand and teach us. His love for the animals was overflowing, and that's why we were able to have such an amazing experience. He also assessed the spots from a professional perspective, making for a very satisfying time.

I would love to participate again once I can snorkel! Thank you very much!!!

本当にイルカと泳げました。感動はかなり大きかったです！
今思えば予約がとれてよかった！と思っております。
シュノーケリング未経験で沖に出てしまった私ですが、スイムインストラクターの方のサポートやアドバイスで最終的にはイルカを間近で見ることができて本当に行ってよかった！です。
船長さんが何よりも海、イルカ、クジラなどのことが大好きで、大好きだからこそわかること、教えられることがたくさんあるんだなと思います。動物たちへの愛が溢れていて、だからこそ私たちの体験が得られたんだなと思います。ポイントもプロの目線で見極めてくれてかなり満足な時間でした。
またシュノーケルできるようになって参加したいものです！ありがとうございました！！！

The captain and the swim guide were both Japanese with blue eyes, and their love for the sea radiated from them.

Perhaps we were lucky with the timing, as we were fortunate enough to see whales, which got everyone on board very excited.

The dolphins we aimed to see were not at an easily accessible spot, but they knew the locations where we could feel closer to them. If I have the chance to come back to the Big Island, I would love to participate again.

船長、スイムガイド共に青い目をした日本人で、海が好きな感じが
全身からあふれ出ていました。

参加したタイミングが良かったのかクジラも運良く見ることができ、
船内一同大盛り上がりでした。

目当てのイルカも安易に見られるポイントではなく、より近くに感じられる
ポイントを熟知しており、次回ハワイ島に来る機会があったら、また参加
させてもらいたいと思います。

Dolphins are wild creatures, so there's no guarantee that you'll see them, but this tour offers a high probability of encountering them. The reason for this is that the instructor drives the boat and selects snorkeling points based on the dolphins' behavior that day. They also provide detailed instructions to help you see the dolphins up close. When the dolphins appeared right in front of us, I was very excited. I believe this is the only tour where you can see wild dolphins up close with such a high probability. I had a really great time participating. Thank you!

イルカは野生の生き物なので必ず会えると言う保証はありませんがこのツアーは、ほとんどの確率で会えます。
それは何故かと言うと、インストラクターの方が船を運転してその日のイルカの調子でポイントを選んでシュノーケリングをするからです。
またイルカを間近で見るために細かい指示をしてくれます。
今回イルカがの前に現れて、とても興奮しました。これだけ高い確率で野生のイルカを間近に見ることができるツアーはここのツアーだけだと思います。
参加できてほんとに楽しかったです。
ありがとうございます。

It seems that there are days when you may not encounter whales. On this day, they were also slow to appear. At the crew's words that they were around here, the multinational members all focused their eyes intently. Then, with a splash, they jumped! "Oh my God!" voices exclaimed. Everyone was moved by the sight of these mammals living in the ocean, beings so close to us. It was a tour that allowed us to empathize with the beauty of nature and the essence of life.

日によっては、クジラに遭遇できないこともあるそうです。
この日もなかなか出てきてくれません。あの辺にいるよとクルーの言葉に、多国籍メンバーが一斉に目を凝らす。と、水しぶきを上げてジャンプ！「オー・マイ・ガーッド」と声が上がる٩(^‿^)۶海中で生きる哺乳類、我々に近い存在の姿に参加者全員が感動。自然の素晴らしさと命に共感できるツアーでした。

I was truly impressed by Captain Daisuke's feelings of closeness to the dolphins and whales, as well as his desire to entertain us participants. Thanks to Swim Guide Ray's accurate advice, we were able to swim among the pods of dolphins. It was a deeply moving experience for me. I will definitely return to the Big Island next year during whale season!

船長ダイスケさんのイルカやクジラに寄り添う気持ちと、参加している私達を楽しませたい、という気持ちにとても感服しました。
またスイムガイド・レイさんの的確なアドバイスでイルカちゃん達の群れの中にお邪魔させてもらい泳ぐことができました。
初めての体験に心から感動でした。
また来年クジラの季節にハワイ島で
リピートさせて頂きます！

It was moving! I felt like I made eye contact with a dolphin! I was able to swim right next to a pod of dolphins! I want to swim with Daisuke again! I will keep in touch with everyone I was with, and starting tomorrow, I will work hard dreaming of the day I can swim with the dolphins and all of you again! I hope Daisuke can swim with the blue whale too!

感動です！イルカと目が合った気がしました！イルカちゃん達の群れのすぐ横で一緒に泳げました！だいすけさんとまた泳ぎたい！ご一緒させて頂いた皆さんとも連絡取り合って、またいつかイルカとみなさんと泳げる日を夢見て明日から頑張ります！だいすけさんもシロナガスクジラと一緒に泳げますように

February 5

On my first overseas trip to Hawaii, I was greeted by Daisuke, a staff member with a bright smile. From the moment we started moving, he shared his love for dolphins and the charm of the Big Island, which got me excited. The fact that there are many whales too made me even more thrilled.

There were 11 Japanese participants, including repeat visitors, and everyone except us was from the Kansai region, making for a lively group.

With Captain Jesse at the helm, we felt the sea breeze and sped through the ocean, which was already an attraction in itself (laughs). Along the way, we encountered manta rays and whales while listening to Daisuke's stories about dolphins, and finally arrived at the dolphin point. We donned fins and snorkels (and wetsuits and floatation devices for those who needed them) and headed into the sea! Looking down, I could clearly see the ocean floor about 15 meters below, illuminated by the sunlight. What a beautiful world.

Following Daisuke's call, I swam toward him and saw many spinner dolphins swimming right beside us, which was such a close encounter! Just as I was soaking in that excitement, the dolphins suddenly made a U-turn and sped off in the opposite direction. After waiting a bit, three bottlenose dolphins appeared. According to Daisuke, the spinner dolphins fled when the "giant" dolphins arrived.

To my surprise, the bottlenose dolphins stayed at the ocean floor, seemingly playing with each other, allowing us to watch them slowly. Daisuke mentioned that such a sight is truly rare in Hawaiian waters. It was an amazing experience to have such a rare encounter.

I highly recommend this tour if you come to the Big Island. One thing to note is that practicing snorkeling in advance can enhance your enjoyment even more.

I will definitely repeat this experience!

２月５日

初めての海外とハワイ旅行、スタッフである朝晴れやかな笑顔のだいすけさんに迎えに来てもらえ、移動中からイルカ大好き&ハワイ島の魅力を教えてもらえ、ワクワク。
クジラも沢山いるね～ってことで更にワクワク。

リピーターを含めた11名の日本人、僕ら以外が全員関西の方だったので賑やかなメンバーとなりました。

船長のジェシーの運転で、海風を浴び、爽快に海を突き進む、もうこれだけでアトラクション(笑)
途中にマンタや鯨に出会いながら、だいすけさんのイルカの話を聞きながら、いよいよイルカポイントに到着。
フィンとシュノーケル(必要な人はウエットスーツと浮具)を纏いいざ海へ！
下を除くと15mくらいの海の底がはっきり見え、ふりそそぐ太陽の光。
なんて美しい世界。

こっちだよ～ だいすけさんの呼ぶ方へついていってみると、沢山のハシナガイルカが何頭も自分たちの横をすり抜けていく、こんな近くに来てくれるんだ～♪くらいに。そんな感動に浸っていると急にイルカがUターン。
ものすごいスピードで反対方向に向かっていきました。
少し待っていると、三頭のバンドウイルカ、だいすけさん曰く、ジャイアンイルカ、ハシナガイルカはジャイアンが来たら逃げていったんだそう。

そのバンドウイルカがなんと、海の底に留まって休憩、お互いにじゃれているように見えましたが、ゆっくりイルカの姿を眺めることができました｡
ハワイの海では本当に珍しい奇跡のようなことだそう。
こんなレア体験ができて最高でした。

ハワイ島に来たらこのツアーをオススメします。
注意点としては、シュノーケルを事前に練習しておけると、より楽しむことができると思います☺️

またリピートするぞ！

I participated on January 28, 2019.
This boat didn't have a Japanese guide, so it was mostly foreigners, but in the end, this tour was great.
The pick-up was handled by a cheerful and friendly lady, and there were no particular issues. The boat was smaller compared to other whale-watching boats, which made it easier to see the whales.
There was a large cruise ship in a similar area, but it was crowded with people and far away, so a smaller boat is definitely more comfortable for viewing. Well, if you really want to see them up close, going to Maui would be the best option...
It might be a bit warmer when it's sunny, but since it was somewhat cloudy, it got cold if you were exposed to the wind for too long. Warm clothing is essential. Foreigners seemed to handle the cold well, even in short sleeves, but ordinary Japanese people would definitely need a thick jacket.
I took motion sickness medication just in case, but it was at a level where I thought it might be okay without it. However, this depends on the sea conditions, so I think it's better to have it just in case.
It seemed like there were 2 to 3 whales, and they occasionally showed themselves. They were found relatively quickly, which was a bit surprising. The timing might have been good as well; January to mid-February is said to be the best season. I hope this information is helpful for those planning to go.

2019.1.28に参加しました。
この船は日本語ガイドがないので外国の方ばかりでしたが、結果的にはこのツアーで良かったです。
送迎も明るく気さくなお姉さんで特に問題はなく、船は他のホエールウオッチング船に比べて小さめだったので鯨たちが見やすかったと思います。
似たような場所に大型客船がいましたが、人は鈴なりになっているし距離は遠いしで、小型の船の方が絶対快適に見れますね。まあ、本当に間近で見ようと思ったらマウイ島に行くのがベストでしょうが…
晴れているともう少し暖かいかもですが、やや雲っていたので長く風に吹かれていると寒いです。防寒着は必須です。外国の方は寒さに強いので半袖でも平気そうでしたが、普通の日本人は厚手の上着がないと無理だと思います。
酔い止めは念のため飲んで行きましたが、無くても大丈夫かな？という程度でした。でもこれは海の状態に寄るので、持っておいたほうがいいと思います。
鯨達は2〜3頭いるようで、時々姿を見せました。割とすぐに見つかったので、拍子抜けする位でした。時期も良かったのかもしれません。1月-2月中旬がベストシーズンだそうです。これから行かれる方の参考になれば嬉しいです。

It was fun since it was my first time on a catamaran. The cabin with a roof, the open deck, and the net stretched over the water below allowed me to change my spot according to my mood, making it comfortable. The staff was friendly and kind. Drinks and snacks were free (alcoholic beverages required tips in the box). They would shout out if they spotted a whale, so you wouldn't miss it. Luckily, I was able to see them multiple times.

初めての双胴船なので楽しかった。ルーフがあるキャビン、オープンなデッキ、下は海面の双胴に渡したネットの上など気分で居場所を変えることができ快適。スタッフはフレンドリーで親切。ドリンク＆スナック菓子が無料(アルコール類はチップをボックスに)。クジラが見えたら大声で教えてくれるので見逃さない。運良く何回も見ることが出来た。

I was worried because I have little experience with snorkeling, but I received great support and was able to participate with peace of mind. The swim guides seemed to constantly share information about the dolphins, and thanks to their judgment on where to take us, I was able to see many dolphins!

(If the dolphin sighting location is far away, I think it's good to have motion sickness medication for those who are concerned.)

Also, while on the boat, Daisuke, the swim guide, shared a lot of information about the dolphins and always let us know when dolphins were nearby, which made the waiting time enjoyable.

Additionally, we were lucky enough to encounter whales during the winter season, allowing us to experience both dolphin swimming and whale watching, which was a double delight!

There may be other dolphin swim tours, but this tour was satisfying in every aspect, including knowledge about dolphins, support, and the friendliness of the staff! If I have the opportunity to go to Hawaii again, I would love to do this again.

シュノーケリング等の経験が浅いので心配でしたが、しっかりとフォローしてもらい、安心して参加できました★
スイムガイドさん達も常にイルカの情報をシェアしあっているようで、ちゃんとイルカが見られる場所までその場その場の判断で連れてってくださったおかげでたくさんのイルカをみることができました！！＾＾
（イルカの出現場所によっては遠くなることもあるので心配な方は酔い止めがあるといいと思います）

また、船に乗っている間もスイムガイドのダイスケさんがイルカに関する情報を沢山お話ししてくださり、
常にイルカがあそこにいる！ということも教えてくれたので泳ぐまでの時間も楽しむことができました。

さらに冬季限定でクジラも運良く遭遇することができ、ホエールウォッチングもでき一石二鳥の感動を味わうことができました！

ドルフィンスイムツアーは他にもあるかもしれませんが、イルカに関する知識やサポート、スタッフさんの感じの良さ、全てにおいて満足できるツアーでした！！またハワイに行く機会があればお願いしたいです(^^)