Few parks or trails are on the map in Fern Acres
13 acres are parks and preserves, 9.0 per 1,000 residents. 2.1 miles of mapped trail cross Fern Acres, 0.3 per square mile of land.
Ahead of 18% of U.S. towns. What drives it
How much outdoors does Fern Acres have?
On conserved land, trails, park land and how close residents live to a park, Fern Acres is ahead of 18% of U.S. towns. Trail miles hold the grade up; the share of residents near a park pulls it down.
Hawaii towns conserve more land than most (a typical one, 14%; the U.S., 4%), so Fern Acres’ under 1% is ahead of 2% of Hawaii towns, while its trails per square mile lead 30% of them.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
13 conserved acres
under 1% of Fern Acres’ land. Who manages Fern Acres’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Wao Kele o Puna Local Recreation Area | Not recorded | 13 | Open |
The best walking months in Fern Acres: May to July
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.3 | 13.2 | 12.8 | 12.2 | 11.7 | 11.2 | 11.0 |
| High (°F) | 74 | 72 | 73 | 73 | 75 | 76 | 77 | 77 | 78 | 77 | 75 | 74 |
| Rain (in) | 13.1 | 15.8 | 22.9 | 22.0 | 15.0 | 18.1 | 19.0 | 23.5 | 16.1 | 18.2 | 23.1 | 22.3 |
January is the driest month (13.1 in) and September the warmest (highs of 78 °F). 23.5 inches fall in August, the wettest month. The climate in Fern Acres →
Fern Acres and its neighbors
Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Fern Acres | under 1% | 0.3 | 9 | under 1% | C− |
| Mountain View | 38% | 1.0 | under 1 | under 1% | C+ |
| Hawaiian Acres | 2% | 0.2 | 39 | 3% | C+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Fern Acres
How much of Fern Acres is conserved land?
under 1% of its land, against a typical 14% for a Hawaii town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Is there public land near Fern Acres?
68,536 acres of parks and open public land lie inside Fern Acres or within 10 miles of it (PAD-US), 13 of them inside the town line.
How much outdoors does Fern Acres have?
Ahead of 18% of U.S. towns on the Outdoors grade. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Fern Acres neighbors.
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →