Molokini Crater | Maui

Molokini Crater is a partially submerged volcanic caldera located in the Maui County, Hawaii, USA.

It is a marine life conservation district and a popular destination for water-based activities.

Visual Characteristics

The visible portion of the crater forms a crescent-shaped islet composed of volcanic rock. The rock is primarily basaltic, exhibiting dark gray to black coloration. The highest point of the crater rim reaches approximately 300 feet (91 meters) above sea level. The submerged portion of the crater extends downwards, forming a reef structure.

Location & Access Logistics

Molokini Crater is situated approximately 3 miles (4.8 kilometers) southwest of Maui's southern coastline. Access is exclusively by boat. Numerous tour operators depart from harbors such as Ma'alaea Harbor (approximately 15 miles or 24 kilometers from Kahului Airport) and Kihei Boat Ramp. Boat travel time typically ranges from 30 to 60 minutes depending on the departure point and vessel speed. There is no land access or parking at the crater itself.

Historical & Ecological Origin

Molokini is the remnant of a volcanic cone that erupted approximately 230,000 years ago. It is classified as a tuff cone, formed by a series of underwater volcanic explosions. The crater's shape is a result of erosion and the partial submersion of the volcano.

Key Highlights & Activities

Snorkeling and scuba diving are the primary activities. The clear waters and diverse marine life make it suitable for observing reef fish, sea turtles, and various invertebrates. Boat tours often include stops at two distinct reef areas within the crater: the "back wall" for advanced divers and the "reef flats" for snorkelers and beginner divers. Kayaking is also possible for individuals with appropriate permits and equipment.

Infrastructure & Amenities

There are no permanent structures or amenities on Molokini Crater itself. Restrooms and food services are available on the tour boats. Cell phone signal is generally unreliable within the crater due to its remote location and the surrounding topography.

Best Time to Visit

The best time for visibility is generally during the morning hours, from approximately 7:00 AM to 11:00 AM, when the sun angle is favorable for underwater viewing and the water is typically calmer. The months of April through September offer warmer water temperatures and reduced likelihood of rough seas. High tide is not a critical factor for most activities, but calm conditions are preferred.

Facts & Legends

Molokini is one of the few islands in the Hawaiian archipelago that is uninhabited by humans. Its protected status as a marine sanctuary has allowed for a significant recovery of its coral reef ecosystem. A local legend suggests that the crater was once a full island that was split in two by a Pele, the Hawaiian goddess of volcanoes, during a battle with a lizard god.

Nearby Landmarks

• Ma'alaea Harbor (15km Northeast)
• Kihei Boat Ramp (10km Northeast)
• Makena State Park (12km Southeast)
• La Perouse Bay (18km Southeast)