Coral is more abundant and diverse along the northeastern shoreline. Small caves and archways are found near the point on the bay's left side. The bottom at Mokule'ia Bay is mostly sand. At the right point are large submerged boulders, and fingers of lava occur along the left point. Both points offer good coral growth.
Depths range from about ten to fifty feet.
If the water is calm enough, you can snorkel from one bay to the other. Safety considerations Waters should be avoided during winter months, when high surf is common. Use caution going down the cliffs to Mokule'ia Bay. Regulations Fishing for, taking or injuring any type of marine life is prohibited, as is the possession in the water of any type of fishing gear. However, possession of fishing gear, or fish taken outside of the District, is permitted aboard boats.