Hawaii, Big Island tours & activities, fun things to do in Hawaii, Big Island. | HawaiiActivities.com

Swim and snorkel among wild Hawaiian Spinner Dolphins on a semi-private (six passengers) ocean rafting expedition to the Kealakekua Bay Marine Sanctuary.

Have an evening to remember as you set out on a semi-private sunset cruise with delicious fruit and sushi, and then snorkel among the majestic giant manta rays.