West Dennis Graded School · Photo: Thomas Kelley from Boston, MA · CC BY-SA 2.0Dennis has 53 miles of mapped trails, 2.6 for every square mile of land
26% of Dennis’ land is conserved, about 3,368 acres. Virtually every resident lives within a half mile of a park. 1,262 acres are parks and preserves, 85 per 1,000 residents.
Among the top 1% of U.S. towns · #42 of 283 in Massachusetts. What drives it
What kind of outdoors town is Dennis?
Read from the map. The page puts what stands out first.
How much outdoors does Dennis have?
On conserved land, trails, park land and how close residents live to a park, Dennis is among the top 1% of U.S. towns, #42 of 283 in Massachusetts. All four inputs put Dennis near the top nationally; trail miles rank highest.
Massachusetts towns conserve more land than most (a typical one, 21%; the U.S., 4%), so Dennis’ 26% is ahead of 63% of Massachusetts towns, while its trails per square mile lead 67% of them.
Water is 8% of Dennis’ area (2 of 22 square miles), so every share here is of land; over land and water together, the conserved share would read 24%.
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.
Pick a walk
The longest trail network is Coles Pond At Crowes Pasture Conservation Area, with 2.4 miles. Directions go to the nearest trailhead or public parking.
Flax Pond Conservation Land
Indian Lands
Indian Lands Ii
Davis-Bush Conservation Area
Fresh Pond Conservation Area
Conservation Land/So Yarmouth
All 87 parks & preserves
3,368 conserved acres
26% of Dennis’ land. Water is left out: Dennis has 20.6 square miles of land and 1.8 of water, so the share counts land only. Who manages Dennis’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 449 acres are conservation easements, usually private land. Public access isn’t recorded for 71 of 306 parcels. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Water District Land Watershed Protection Area | Not recorded | 598 | Unknown |
| Black Flats Conservation Area Private Conservation | Not recorded | 220 | Unknown |
| Dennis Highlands Golf Course Local Other or Unknown | Not recorded | 172 | Restricted |
| Dennis Pines Golf Course Local Other or Unknown | Not recorded | 162 | Restricted |
| West Dennis Beach Local Other or Unknown | Not recorded | 146 | Open |
| Wd Land/Old Chatham Rd Watershed Protection Area | Not recorded | 117 | Open |
| Water Supply Protection - Dep/Ala Watershed Protection Area | Not recorded | 94 | Unknown |
| Cape Cod Land Bank Acquisition Local Other or Unknown | Not recorded | 92 | Open |
| Water Department Land Old Chatham Road Watershed Protection Area | Not recorded | 82 | Unknown |
| Flax Pond Conservation Land Local Other or Unknown | Not recorded | 76 | Open |
5 smaller protected places aren’t shown.
87 places to go in Dennis
Beaches, playgrounds, peaks, falls and more. Pick a kind.
5 more beaches
59 beaches are on OpenStreetMap in all; the list shows named ones from the first 30.
9 playgrounds without a name on the map. Tap “Show all on map” to see them.
7 boat launches without a name on the map.
Plus 1 scenic view without a name on the map. Tap “Show all on map” to see it.
1 picnic area without a name on the map.
2 named trails and 13 lakes & rivers
12 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Includes school and college facilities, which aren’t always open to the public.
5 places on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 3 historic points from OpenStreetMap: plaques, memorials and old buildings.
The best walking months in Dennis: May to September
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) | 9.5 | 10.5 | 11.8 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 39 | 40 | 45 | 54 | 63 | 72 | 79 | 78 | 72 | 62 | 53 | 44 |
| Rain (in) | 3.9 | 3.3 | 4.4 | 4.1 | 3.2 | 3.3 | 2.5 | 3.4 | 3.8 | 4.4 | 4.0 | 4.7 |
July is the driest month (2.5 in) and the warmest (highs of 79 °F). 4.7 inches fall in December, the wettest month. The climate in Dennis →
Dennis 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 |
|---|---|---|---|---|---|
| Dennis | 26% | 2.6 | 85 | 99%+ | A+ |
| East Dennis | — not graded: under 1,000 residents or part of its town | ||||
| Yarmouth | 33% | 4.3 | 65 | 99%+ | A+ |
| Brewster | 29% | 4.7 | 247 | 99% | A+ |
| Yarmouth Port | — not graded: under 1,000 residents or part of its town | ||||
| Dennis Port | — not graded: under 1,000 residents or part of its town | ||||
| South Yarmouth | — not graded: under 1,000 residents or part of its town | ||||
| West Dennis | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Dennis
Where can I hike in Dennis?
The longest trail networks: Coles Pond At Crowes Pasture Conservation Area, 2.4 miles; Flax Pond Conservation Land, 1.5 miles; Indian Lands, 1.3 miles; Indian Lands Ii, 1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Dennis is conserved land?
26% of its land, against a typical 21% for a Massachusetts town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Dennis’ trails?
Coles Pond At Crowes Pasture Conservation Area and Flax Pond Conservation Land don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Dennis?
12 miles of bike routes are on the map: 0.8 of painted or protected lanes, 11 of off-road paths and 0.1 of shoulders and shared lanes.
Is there public land near Dennis?
21,302 acres of parks and open public land lie inside Dennis or within 10 miles of it (PAD-US), 1,485 of them inside the town line.
How much outdoors does Dennis have?
Among the top 1% of U.S. towns on the Outdoors grade, #42 of 283 in Massachusetts. 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 Dennis 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 →