Created from a collapsed volcano crater, this bay is protected and calm, ideal for snorkeling, as you'll see from the crowds around you. The snorkeling is truly amazing, since the preserve protects the wildlife and creates a favorite place for the fish to come eat. It offers great opportunity for viewing marine life and also boasts a terrific beach and hiking trails. Additional facilities include picnic areas, showers and restrooms, concession kiosks, a volleyball court, and lifeguards. Although parking can be difficult if you don't arrive early, a shuttle bus runs from Waikiki in the mornings and makes return trips in the afternoons.