Napili Bay

Napili Bay is a protected, crescent-shaped bay on northwest Maui with historically baseline water quality under normal dry conditions. The bay benefits from its relatively open exposure to the northwest and good tidal flushing. The surrounding area is primarily residential and small hotels rather than heavy commercial development, which helps.

The main water quality risk factor here is stormwater runoff after heavy rain. The bay's somewhat enclosed shape means it doesn't flush contaminants as quickly as an open-coast beach. The DOH does not monitor this beach as regularly as some others, so visual assessment is always important.

Based on: DOH beach monitoring data, bay flushing characteristics, surrounding land use

Napili Bay sits at the base of a residential community on northwest Maui, sandwiched between the Kaʻanapali resort district to the south and the Kapalua resort to the north. It's a classic crescent bay with a modest sandy beach fronted by small condominiums and low-rise hotels — the Napili Kai Beach Resort and Napili Surf are the landmarks.

The beach access is public (as all Hawaii beaches are) but somewhat hidden — look for access paths off Napili Place or Hui Dr. Parking is limited; early arrival helps. The bay has a pleasant local community feel and is considerably quieter than Kaʻanapali.

Snorkeling: The best snorkeling is along the rock outcroppings at both ends of the bay. Turtles are frequently seen near the south end reef. Morning hours offer the best visibility. The center of the bay is sandy-bottom and better for swimming than snorkeling.

Waves: Generally calm, protected from the dominant trade wind swell. Can see short-period north swell in winter. Summer is usually the calmest. Not known for dangerous wave conditions under normal circumstances.

Napili Bay is part of a cluster of excellent northwest Maui beaches: