On our recent trip to the big island, we rented two double kayaks and spent a few hours going across the bay. We saw spinner dolphins and a lot of colorful fish, and had the option to go snorkeling, but decided not to. It was a beautiful day and we got a good view of the Captain Cook Monument. The only complaint I have is that it was somewhat difficult to locate the launch site, as well as parking. My brother in law went to drop us off by the entrance, as I am on crutches and my mother has some mobility issues and we couldn't walk very far, and a nearby neighbor was screaming at us that we could not park there - when we were clearly not parked, as the car was still running and we were quickly taking items out of it. We were also not near her property. This produced a bit of a sour note at the beginning, but we managed to enjoy the rest of the trip.