Explorer #1: 24’ boat departs from Waimea: Enters caves, gets closer to action
Explorer #2: 48’ boat departs from Waimea: Features a marine restroom, shower, & canopy
Ocean Adventures: 46’ boat departs from Hanalei: Features a marine restroom, shower, & canopy
Happy Times: 41’ boat departs from Port Allen: Fishing charters
Trips are run on the Zodiac rafts and the crew specializes in snorkeling tours.
This rating only applies if you're trying to find it on the Big Island. I'm pretty sure this is on Kauai.