Ya, we took a boat to Molikini Island and Turletown and saw lots of fish, eels, and turtles. After that we just went snorkeling in a cove by our resort and saw tons more turtles. It was amazing.
I enjoyed the road to Hana. It has over 600 turns and lots of one vehicle wide bridges. We stopped a lot to look at the waterfalls, trails, beaches, and blowholes. My kids didn't like the drive because they got a little car sick with all those turns. The drive to Hana is not a destination, it really is a journey. It took all day.