Geology of Hanauma Bay, Oahu

• Nature Preserve
• Educational Center
• Snorkelling
• Inner Reef
• Keyhole Lagoon
• Tropical Fish
• Marine Life
• Outer Reef
• Coral Reefs
• Sea Turtles
• Hanauma Beach
• Underwater Park
• Koko Crater
• Geology
• Ecology
• Hanauma Park

Hanauma Bay on the Island of Oahu in Hawaii is a volcanic crater that has been exposed on one side to the Pacific Ocean.  The rock and soil of the bay is rich in nutrients and is protected from strong ocean currents, making it an ideal habitat for marine life.

Geology of Hanauma Bay, Oahu