Molokini is a crescent-shaped, partially submerged volcanic crater which forms a small islet located in Alalakeiki Channel between the islands of Maui and Kahoʻolawe, part of Maui County in Hawaiʻi. It has an area of 23 acres (9.3 ha), a diameter of about 0.4 miles (0.6 km), is 161 feet (50 m) at its highest point and is located about 2.5 miles (4.0 km) west of Makena State Park and south of Maʻalaea Bay. It is a popular tourist destination for scuba diving, snuba and snorkeling.