Coastal Wetland Estuary Restoration in Hilo

Hawaiʻi Island has lost approximately 75% of its historic low-elevation wetlands due to infill and development, with much of the remaining wetland habitat degraded by invasive, non-native plants. The greatest loss has occurred in Hilo. This loss has had a profound impact on native wildlife that rely on these habitats to survive.

At the 51-acre Lokowaka Pond complex in Hilo—which includes Lokowaka, Kiʻonakapanu, ʻAkahi, and Hauna ponds—we are restoring one of Hawaiʻi’s most significant remaining wetland and estuarine systems. These interconnected ponds are traditional loko iʻa (Hawaiian fishponds) fed by punawai (freshwater springs) mixing with seawater, forming an ancestral aquaculture system that once supported local food sovereignty, ecological abundance, and community well-being.

Our work focuses on restoring critical habitat for threatened and endangered native waterbirds, migratory species, and aquatic life—while also honoring the cultural and ecological integrity of this special place.

With the help of dedicated local and visiting volunteers, we’re removing invasive vegetation, replanting native species, and helping to revive the flow of freshwater that nourishes this system from mauka to makai.

According to the 2024 Pacific Birds Habitat Joint Venture Strategic Plan for Hawaiʻi Wetlands, Lokowaka Pond ranks as the eleventh most important wetland statewide—and is the top restoration priority on Hawaiʻi Island.

By volunteering, you’ll not only help protect Hawaiʻi’s native species—you’ll also gain a deeper connection to the land and water.

Be prepared for changing weather conditions and wet, muddy, uneven terrain. Activities include hand-pulling invasive weeds and planting native vegetation, rain or shine.

Recommended Clothing:

• Lightweight, quick-drying long-sleeved shirt and pants (for sun and insect protection)

• Closed-toed shoes, reef shoes, tabis, or diving boots you don’t mind getting wet and muddy (sharp objects may be present)

• Hat, reef-safe sunscreen, and sunglasses

• Waterproof jacket or poncho

Supplies to Bring:

• Reusable water bottle (bring plenty of water)

• Optional: Insect repellent

• Tools and gloves provided

Post-Work Essentials:
Showers are available.

• Change of clothes and footwear

• Towel

• Bag for wet/muddy items