Water quality status and bacteria risk rating
📍 North Maui, Kapalua — Marine Life Conservation District
Honolua Bay's Marine Life Conservation District status and excellent ocean circulation give it excellent water quality during calm summer months. A small stream at the bay's back can carry runoff after heavy rain.
The primary danger here is not water quality but seasonal surf — winter northwest swells transform this peaceful snorkeling bay into a world-class surf break with waves 15–30+ feet.
Based on: Protected marine preserve, good ocean flushing, limited development nearby, small stream input
Stay out of the ocean for at least 72 hours after heavy rain. The stream at the back of Honolua Bay can carry elevated bacteria levels after rainfall. If the water looks brown or murky, choose a different beach.
Honolua Bay on Maui's northwest coast is a legendary destination revered by both snorkelers and surfers. As a Marine Life Conservation District (MLCD), the bay is protected from fishing, allowing its coral reefs and marine life to flourish.
During summer months, the bay is calm enough to walk the rocky path down to the water's edge and snorkel among some of Maui's most vibrant coral gardens. Sea turtles, spinner dolphins, and hundreds of tropical fish species call this bay home.
In winter, professional surfers from around the world congregate at Honolua Bay when northwest swells deliver the hollow, powerful waves that have made it famous. The Maui Pro surf contest was historically held here. Spectators watch from the clifftops — never from the water's edge.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health or any government agency. Water quality ratings are estimates based on publicly available data and are not real-time measurements.
Always verify current conditions with the Hawaii Department of Health Clean Water Branch before entering the water.
When in doubt, don't go out. 🤙