It was a fun time for the family.

It was definitely a unique experience, and having it depart from the pier in downtown Kona was great. We saw some marine life, though I guess we expected a bit more variety of fish (mostly yellow ones). Guess the fish don't come when it's sub time though! We loved looking at the coral and seeing a whole different world under the surface.
We did buy the CD that was offered for $20 with your picture, thinking it would have a variety of marine life pictures from previous trips, but on first inspection, it doesn't appear to have much. We did get our picture on the CD plus pictures of everyone else on the ride ... Don't think it was worth the $20.
Overall, a great and unique thing to do and I'd definitely recommend it to first-timers and those with kids, but not something I'd do again I don't think.

Overall, it was a fun experience to be in a submarine. We got to see a pod of dolphins, so that was exciting. It's like scuba diving but you don't get wet. Pretty neat. The pier is a walking distance from downtown Kona, so it was very close to our hotel.

Submarine ride was interesting, but unfortunately not much to look at. Not a lot of marine life.

The crew was fantastic. A very unique way to see ocean life up close. It was a bit crowded and you have to bend over to see out the windows if you are taller than 5 foot, but you soon forget about that as you look through your window.