This is an awesome spot to snorkel. Follow a short trail from a large parking lot to the black sand beach. Enter the water on the very south end of the small beach for easy entry since there are a few rocks along the beach at the waterline. Snorkel to the north side and around the outcropping of lava rock that sticks up on the north end. There are huge old lava formations about 10 feet high that you can easily swim around with coral and fish everywhere. Mr. Turtle lives in the cave under the slab just on the other side of the outcroppings. Tell him I said hi!! Nice clean port-a-potties at the parking lot.