Swimming with huge sea turtles is a huge draw to this site. I saw about 6 of them in total each of the three times I snorkeled here. The water can be rough, since you face open ocean. One day it was exhausting to swim against the current, but the other two days it was fine. Also, beware of the dumb tourists who climb the lava rocks and then jump into the water. They ignore the signs telling them not to climb the rocks. You can be swimming out to snorkel and have one land on you. Water was clear and conditions great each time.