Kawai Nui Marsh

Kawai Nui Marsh is a cherished wildlife sanctuary and the largest remaining freshwater wetland in Hawai'i, a vibrant oasis brimming with natural beauty and historical significance. Spanning approximately 830 acres on Oʻahu's Windward side, this Ramsar Wetland of International Importance serves as a critical habitat for several endangered native Hawaiian waterbirds and offers breathtaking views of the majestic Koʻolau Mountains. It's a place where history, culture, and nature intertwine, inviting visitors to connect with Hawaiʻi's ancient past and its vital present.

The marsh is a haven for unique Hawaiian waterbirds, including the endangered Hawaiian Stilt (Aeʻo), Hawaiian Coot (ʻAlae keʻokeʻo), and Hawaiian Gallinule (ʻAlae ʻula), as well as the Hawaiian Duck (Kōloa Maoli). Visitors can stroll or bike along the Kawainui Marsh Trail, a paved levee that offers excellent vantage points for birdwatching and photography, especially of these rare species in their natural environment. The Kaha Garden, located near the trailhead, provides an opportunity to discover various native Hawaiian plants such as Pōhinahina, Milo, ʻŪlei, ʻĀkia, Naupaka, Maʻo hau hele, and Neke fern.

A visit to Kawai Nui Marsh offers a serene escape and a profound appreciation for Hawaii's natural and cultural heritage. Whether you're seeking to witness endangered bird species, immerse yourself in the tranquility of a vital wetland ecosystem, or simply enjoy a scenic walk with stunning mountain backdrops, the marsh provides a memorable experience. Its role in flood control and its ongoing restoration efforts underscore its ecological importance, making it a powerful example of conservation in action. Planning to visit? Download the Snappit app to identify the wildlife you spot in real-time.