Molokini is the best snorkeling in Maui, but it is a little more taxing then beach snorkeling. Our tour was with Yonegan Maui Ocean Getaways. And the experience was a real highlight of our trip. Going from Kihei to the crater is pretty fast, though it wasn't so fast as to bash us about int he waves. The boat is a large rigid inflatable craft. We spent an hour in the water and then came back. I didn't think the hour would be enough, but when we re-entered the boat, we found we were beginning to get a little tired and a little cold, so it was a good stopping point. The crew was friendly and helpful to everyone. When I come back and do this again on my next trip here, I will book my trip with the same company.