Wilderness Landscape & Natural Heritage
Kaʻu Forest Reserve spans a significant portion of eastern Hawaiʻi Island, covering the upper slopes of Mauna Loa volcano. The reserve is characterized by dense native wet and mesic forests dominated by ʻōhiʻa lehua (Metrosideros polymorpha) and ʻōlapa ( Cheirodendron trigynum). This forest ecosystem supports a variety of native Hawaiian birds, many of which are endangered or threatened, such as the ‘apapane and ‘i’iwi. The area also contains important habitat for native trees, ferns, and understory plants. Historically, the reserve was established to protect watershed values, helping to maintain freshwater resources and prevent erosion on the slopes of the volcano. Recreational access is generally limited compared to national parks but includes several hiking trails connecting to nearby conservation lands and larger forest reserves. Visitors to Kaʻu Forest Reserve can experience hiking through rich native forest, bird watching, and viewing unique volcanic landscapes. The reserve is part of a larger network of protected areas that together help preserve Hawaiʻi’s native biodiversity and natural heritage. Though less frequented by tourists, its remoteness and ecological significance offer a quiet and immersive experience for nature enthusiasts. Emergency preparedness and awareness of forest conditions are important when visiting due to the reserve's size, elevation changes, and limited facilities.
