Hilo Watershed Forest Reserve is a significant natural area on the windward slopes of Mauna Kea, characterized by its dense montane rainforest and diverse landscapes. This reserve, established for watershed protection, features lush 'ōhi'a lehua and koa forests, numerous streams, and trails that traverse older lava flows now reclaimed by native vegetation. The varied terrain and natural beauty of the Hilo Watershed Forest Reserve provide a setting for several sports like touring cycling, road cycling, jogging, and hiking.
33
Routes
4.2
(13)
Average rating
309
People visited

1.37km
00:21
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

1.83km
00:28
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.5
(2)
19
hikers
13.9km
03:35
70m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4.5
(2)
20
hikers
14.0km
03:38
90m
90m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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37
riders
108km
06:27
2,780m
2,780m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(1)
11
riders
57.3km
02:54
850m
840m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

5
riders
41.6km
02:43
510m
510m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

32.6km
01:32
250m
250m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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2
runners
7.64km
00:48
60m
60m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.85km
00:31
80m
80m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

60
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

45
runners
11.2km
01:09
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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1
riders
12.5km
00:54
220m
220m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3
riders
75.5km
05:27
1,710m
1,710m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

16.6km
01:00
150m
150m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.45km
00:22
90m
90m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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The Hilo Watershed Forest Reserve is a protected area on the windward slopes of Mauna Kea, established in 1905 for watershed protection. It spans approximately 64,000 acres of public land. The reserve features dense montane rainforests, 'ōhi'a lehua and koa forests, and numerous streams.
The Hilo Watershed Forest Reserve offers opportunities for touring cycling, road cycling, jogging, and hiking. Routes cater to various skill levels, with more than 500 visitors rating the experiences an average of 4.39 out of 5 stars. Specific guides are available for Cycling, Road Cycling, Running, and Hiking.
Yes, the reserve provides a network of trails suitable for moderately experienced hikers and runners. Paths wind through lush rainforests, along riverbanks, and across old lava flows. Popular routes include the Puʻu Oʻo Trail loop and the Rainbow Falls – Wailuku River State Park loop. A guide for Hiking in Hilo Watershed Forest Reserve is available.
The reserve is characterized by dense montane rainforests with lush 'ōhi'a lehua and koa forests. Trails often cross older lava flows that are now reclaimed by native vegetation. Numerous streams crisscross the area, and some routes offer panoramic views of Mauna Kea.
Yes, the reserve offers family-friendly loops among its network of trails. These paths provide opportunities for exploring the lush environment in a less strenuous manner. A specific guide for Family-friendly hikes in Hilo Watershed Forest Reserve is available.
Touring cycling routes wind through lush forests and river valleys. The Wailoa River State Recreation Area via Mohouil Park loop is an easy 4.4-mile (7.1 km) option. For more routes, consult the Cycling in Hilo Watershed Forest Reserve guide.
Yes, the region provides road cycling routes with significant climbs and varying elevations. The Mauna Kea Base via Hilo trail is a challenging 46.9-mile (75.5 km) route with substantial elevation gain towards the base of Mauna Kea. More options are detailed in the Road Cycling Routes in Hilo Watershed Forest Reserve guide.
Yes, the reserve has trails suitable for jogging. These routes wind through the verdant canopy and offer a natural setting for runners. Information on specific paths is available in the Running Trails in Hilo Watershed Forest Reserve guide.
The reserve is known for its dense montane rainforest, featuring 'ōhi'a lehua and koa forests. Trails traverse older lava flows now covered by native vegetation, and numerous streams flow through the area. The region also provides critical habitat for native forest birds.
The Hilo Watershed Forest Reserve is a popular destination, with more than 500 visitors having shared their experiences on komoot. Routes in the region have an average rating of 4.39 out of 5 stars. This indicates a high level of satisfaction among outdoor enthusiasts.
Komoot offers several guides for the Hilo Watershed Forest Reserve, covering various activities. These include guides for Cycling, Road Cycling, Running, and Hiking. There are also guides for Family-friendly hikes and Traffic-free bike rides.
For permits related to hiking or other activities, contact the State of Hawaii Department of Land and Natural Resources (DLNR), Division of Forestry and Wildlife (DOFAW). The permit office can be reached at (808) 587-0166. It is advisable to confirm any specific permit requirements before visiting.
The Hilo Watershed Forest Reserve is managed by the State of Hawaii Department of Land and Natural Resources (DLNR), Division of Forestry and Wildlife (DOFAW). The Hawaii Division of Forestry & Wildlife - Hilo Tree Nursery can be contacted at (808) 974-4221. The DLNR main office in Honolulu is available at (808) 587-0400.

