Wailea's two flagship resorts compared on water quality
Beach: Wailea Beach
The Grand Wailea sits on Wailea Beach with excellent water quality. South Maui's dry climate means minimal runoff. The beach has a low bacteria risk rating (1/5) and is consistently clean.
Beach: Wailea Beach
The Four Seasons Maui shares Wailea Beach with the Grand Wailea. Both enjoy the same excellent water quality — low bacteria risk (1/5) thanks to South Maui's dry climate and minimal stream discharge.
Both hotels share Wailea Beach with identical water quality. Wailea is one of the cleanest resort beach areas in all of Hawaii, with a low bacteria risk rating (1/5). South Maui receives only about 15 inches of rain per year, producing very little runoff. There are no major streams or cesspools affecting the area. Modern resort infrastructure includes advanced wastewater systems. Your choice should be based on resort style and budget, not water quality.
Water quality risk ratings are based on publicly available data from the Hawaii Department of Health Clean Water Branch, EPA impaired waters database, USGS stream monitoring data, and geographic analysis of pollution sources (streams, cesspools, storm drains). Ratings are estimates and may change with conditions.
Top-rated experiences near these hotels. Check water quality above, then plan your trip.
Tours listed via Viator and GetYourGuide. Safe to Swim Hawaii may earn a commission if you book, at no extra cost to you.
Free alerts when water quality changes at your beach.
⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent project not affiliated with any hotel, resort, or the Hawaii DOH. Water quality ratings are estimates based on publicly available data — not real-time measurements.
Always verify conditions with the Hawaii DOH Clean Water Branch before swimming.
When in doubt, don't go out. 🤙