Ranked by water quality, visibility & marine life
Maui is a world-class snorkeling destination with everything from offshore volcanic craters to calm resort bays. Water quality across Maui’s top snorkeling spots is generally excellent, especially on the dry south and west coasts. This guide ranks the best spots by bacteria data, water clarity, and overall experience.
The gold standard for Maui snorkeling. This partially submerged volcanic crater sits 3 miles offshore with crystal-clear water often exceeding 150 feet of visibility. Zero land runoff concerns. Over 250 species of fish. Accessible only by boat tour — morning trips offer the best conditions.
The best shore-entry snorkeling on Maui. Protected crescent bay with calm water, excellent visibility, and consistently low bacteria levels. Reef starts close to shore. Sea turtles, reef fish, and occasional octopus. Great for all skill levels.
Marine life sanctuary with pristine water and one of Maui’s healthiest coral reefs. Incredible diversity of fish, sea turtles, and rays. Only accessible for snorkeling April through October — big winter surf makes it dangerous. No facilities.
Sandy-bottom bay with calm water and regular sea turtle appearances. Good visibility and gentle conditions make it ideal for families and beginners. Best snorkeling is along the rocky edges of the bay. Good water quality under normal conditions.
South Maui’s best shore snorkeling spot. Rocky reef between Ulua and Mokapu beaches supports diverse marine life. Excellent water quality thanks to the dry climate. Easy access from Wailea resorts. Morning conditions are best.
Famous for reliable green sea turtle sightings. Lava rock formations provide habitat for turtles, reef fish, and eels. Located in the dry Makena area with excellent water quality. Popular boat tour stop combined with Molokini. Strong currents possible.
The rocky south end of Kam III provides good snorkeling with reef fish and occasional turtles. Lifeguard-protected beach with good facilities. Best snorkeling in calm conditions along the lava rock outcropping.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with DOH or any government agency. Water quality ratings are estimates based on publicly available testing data. They are not real-time measurements.
Always verify conditions with the Hawaii DOH Clean Water Branch before entering the water.
When in doubt, don't go out. 🤙