The biggest naming confusion in tourism, and the December 2025 vote to simplify it.
The Hawaii Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. Rain washes bacteria from cesspools, animal waste, and urban contamination into streams and the ocean. Check Safe to Swim Hawaii before every beach visit.
Hawaiʻi is the name of both a US state (8 main islands, 1.4 million residents) and a specific island within that state (the largest island, often called "the Big Island"). This creates real confusion for tourists: "Iʻm flying to Hawaii" could mean any island, but "Iʻm flying to the Big Island" is specific.
| Island | Airport | Main Areas | Known For |
|---|---|---|---|
| Oʻahu | HNL | Waikiki, North Shore, Kailua | Honolulu, Pearl Harbor, Waikiki Beach |
| Maui | OGG | Kaʻanapali, Wailea, Hana | Road to Hana, Haleakalā, snorkeling |
| Big Island | KOA / ITO | Kona, Kohala, Hilo, Volcanoes | Volcanoes NP, manta rays, black sand |
| Kauaʻi | LIH | Poipu, Princeville, Hanalei | Nā Pali Coast, Waimea Canyon |
In December 2025, the Hawaiʻi County Council voted to drop the "Island of" prefix, officially referring to the island as "Hawaiʻi" in county communications rather than "Island of Hawaiʻi." The move was supported by Hawaiian language advocates who noted that the "Island of" prefix is an English construction not present in Hawaiian. Despite this, "Big Island" remains the dominant informal name among both locals and tourists.
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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 testing data and geographic analysis. They are not real-time measurements and may not reflect current conditions.
Always verify current water quality conditions with the Hawaii DOH Clean Water Branch before entering the water.
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