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State Park

Photo: Eric TessmerCC BY 3.0Wikimedia Commons

Kawainui Marsh State Park Reserve

Hawaii · HI

Official sources & verification

Managed by Hawaii DLNR Division of State Parks

Verify before you go

Source of truth

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: Oct 25, 2026. Spot an error in our data?

About

Kawainui Marsh State Park Reserve is located on the eastern side of Oahu, Hawaii, encompassing a significant wetland area that serves as an important habitat for native birds and other wildlife. The name "Kawainui" translates to "big water," reflecting the marsh's expansive water features. This reserve is distinctive for its rich biodiversity and its role in Hawaiian culture and ecology, providing a rare glimpse into the island's natural environment, as well as a vital resource for conservation efforts. Visitors to Kawainui Marsh can engage in activities such as birdwatching, hiking, and photography while exploring the scenic landscapes. The park is generally accessible, with parking available nearby, but it is advisable to check conditions and accessibility, as weather can affect the area. The marsh is primarily a flat terrain, making it suitable for casual walks, though some areas may be wet and muddy. As conditions and regulations can change, it is recommended to verify hours, fees, and any closures on the official state site before visiting.

Source: google.com

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Hunting in this park

This park overlaps hunting unit

During hunting seasons, wear blaze orange and check regulations — see the Hawaii hunting page

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