Explore & Restore Wildlife for Waterbirds

by Department of Land and Natural Resources (DLNR)

Stretching over 1,000 acres, Kawainui-Hamākua Marsh is the largest wetland and wildlife sanctuary in Hawai’i, which is located near Kailua on Oahu’s windward side. It is a place of natural and cultural significance, home to many native Hawaiian waterbirds, migratory shorebirds, waterfowl, and local fish species.  The sanctuary also holds cultural sites such as Ulupō Heiau and Nā Pōhaku O Hauwahine, that are Wahi Pana, important sacred places, in need of protection.

Help us restore this natural wonder-world while having fun exploring a beautiful and seldom seen part of the island. Your participation will further our mission to promote the safe and responsible use of Hawaii’s natural resources for generations to come.


  • Explore a protected wildlife sanctuary
  • Restore native habitat for endangered waterbirds
  • Learn about wetlands and native Hawaiian wildlife
  • Birdwatching, light hiking, and unique view of the pali hills
  • Preserve Hawaii’s own species for the generations to come

Know before you book

  • Area closed to public – must book using calendar link on this page – no drop-ins
  • Must be able to hike and stay on your feet over uneven terrain
  • Ability to perform gardening tasks while bending, kneeling, lifting, and stretching

1 review

  1. It opened my eyes!

    Unbelievable how polluted a paradise can be! I have never seen so much trash in a such important ecosystem before!
    Therefore, I really appreciate what you guys are doing! Thank you so much for preserving these wonderful places and for opening my eyes how badly we humans treat our nature!
    It was a pleasure being with you and doing something good!
    Thank you so much for this great activity and all your work!

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