Mokuauia (Goat Island)

Mokuauia (Goat Island) is an exposed reef break on Oʻahu’s windward coast, known for very consistent groundswells. The swell works best from the northeast, and the break typically favors high tide, since the reef can be extremely shallow and dangerous at low tide. The surfing setup is described as a peeling reef break that can produce decent peeling sections when swell and tide align. Winter swell is the most consistent period for wave quality, with the best month noted as March and best winds from the north. The spot is exposed, so conditions can change quickly with both wind and swell. Access involves crossing a channel between the mainland and the island. This crossing can be tricky: strong currents can occur and there is a deep hole in the middle of the channel, so wading can become hazardous if you’re not timing it carefully and watching where the water deepens suddenly. Safety and access rules are important here because Mokuauia is a state-protected seabird sanctuary. Visitors must stay on the beach and designated trails to avoid disturbing nesting birds, and restrictions include no dogs and no fires. Hazards reported for the spot include rocks, sea urchins, and sharks, so use appropriate caution and keep your plan conservative, especially during larger winter swell when currents can make waves heavier and harder to manage.