If you're looking for a nature sanctuary in Hawaii that offers an incredible waterbird viewing experience, the Hāmākua Marsh Wildlife Sanctuary is the place to go. Located on the windward side of Oʻahu, this sanctuary is a haven for bird enthusiasts and nature lovers alike. With its serene environment, rich biodiversity, and easy accessibility, a day trip to Hāmākua Marsh is the perfect escape into some of Hawaii's natural beauty.

Hāmākua Marsh Wildlife Sanctuary is a protected wetland area dedicated to preserving native Hawaiian waterbirds and their habitats.

Managed by the Hawaii Department of Land and Natural Resources, this sanctuary plays a crucial role in the conservation of endangered species such as the Hawaiian coot (ʻalae keʻokeʻo) and the Hawaiian stilt (aeʻo). The sanctuary's efforts ensure these unique birds can thrive in their natural environment, providing visitors with a rare opportunity to observe them up close.

Getting to Hāmākua Marsh is straightforward.

Located in Kailua, Oʻahu, the sanctuary is easily accessible by car. From Honolulu, it's a scenic 30-minute drive via the Pali Highway. Once you arrive, you'll find convenient parking near the entrance. While there are no entrance fees, donations are always appreciated to support the sanctuary's conservation efforts.

Well-maintained walking paths allow you to explore the marsh and its surroundings comfortably.

Informational signs along the trails provide insights into the local flora and fauna, enriching your experience. While there are no restrooms on-site, nearby Kailua town offers plenty of facilities, dining options, and shops to meet your needs before or after your visit.

At Hāmākua Marsh, you can expect to see a variety of waterbirds, especially during the early morning and late afternoon when they are most active.

The Hawaiian coot and Hawaiian stilt are the main attractions, but you might also spot other native and migratory birds, such as the Hawaiian duck (koloa maoli) and various species of herons and egrets. The sanctuary's tranquil setting, with its lush vegetation and scenic views, provides the perfect backdrop for bird-watching and photography.

The sanctuary is also home to a diverse array of plant species, many of which are native to Hawaii.

The wetland's unique ecosystem supports a variety of aquatic plants, as well as upland vegetation that surrounds the marsh.

This rich biodiversity makes Hāmākua Marsh a haven for birds and an interesting destination for botanists and nature enthusiasts.

Hāmākua Marsh and the adjacent Kawainui Marsh form the largest remaining wetland habitat in Hawaii.

This wildlife sanctuary, owned by the DLNR, is home to four species of endemic and endangered waterbirds: the ‘Alae ‘Ula, Ae’o, ‘Alae Ke’o Ke’o, and Koloa Maoli.

Visiting Hāmākua Marsh offers a unique opportunity to see these rare species and support vital conservation efforts in preserving Hawaii's natural heritage.

Have you ever visited this nature sanctuary in Hawaii? Let us know in the comments below! Looking for more great wildlife sanctuaries in Hawaii? I love the Three Ring Ranch Exotic Animal Sanctuary!

And if you want to get out and explore some great hikes on the island, check out AllTrails.