Dry Creek Pioneer Regional Park
Managed by East Bay Regional Park District
1,664 acres17.3 mi of trail
High Ridge Loop TrailTolman Peak TrailMeyers Ranch TrailPioneer Trail+1
Dog rules not recorded
Directionsto Dry Creek Pioneer Staging Area
A+Outdoors
Outdoors in Union City
26% of Union City’s land is conserved, and virtually every resident lives within a half mile of a park
Virtually every resident lives within a half mile of a park. 26% of Union City’s land is conserved, about 3,183 acres. 27 miles of mapped trail cross Union City, 1.4 per square mile of land.
Ahead of 97% of U.S. towns · #71 of 847 in California. What drives it
Conserved land
26%
3,183 acres · of 19.4 sq mi of land
Trails
27 mi
1.4 per sq mi of land
Park land
1,969 ac
29 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
Bike routes
37 mi
30 mi lanes · 3.7 mi paths
Highest peak
1,079 ft
Gossip Rock
Lakes & rivers
1
What kind of outdoors town is Union City?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Union City have?
On conserved land, trails, park land and how close residents live to a park, Union City is ahead of 97% of U.S. towns, #71 of 847 in California. All four inputs are above most U.S. towns; conserved land ranks highest, park acres per resident lowest.
A+
OutdoorsA character grade: shown, never part of Union City’s overall grade.
Conserved land26% of the land · typical CA town 4% · U.S. 4%ATrails1.4 miles of mapped trail per square mile of land (27 mi) · CA 0.9 · U.S. 0.4APark land29 acres of park per 1,000 residents (1,969 acres) · CA 5 · U.S. 13B+Parks close to homeVirtually all residents within a half mile of a park · CA 91% · U.S. 72%A
All U.S. towns we grade (21,298)Ahead of 97%
LessMore
California towns of 2,500+ (847)Ahead of 92%
How sure. Graded on any three of the four inputs instead, the letter would range from A to A+. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Dry Creek Pioneer Regional Park, with 17.3 miles. Directions go to the nearest trailhead or public parking.
William Cann Civic Center Park
Park
13 acres1 mi of trail
Dog rules not recorded
Directionsto the parking lot
Casa Verde Park
Park
12 acres0.8 mi of trail
Dog rules not recorded
No trailhead mapped yet
Mariner Landing
Park
3 acres0.4 mi of trail
Dog rules not recorded
No trailhead mapped yet
San Andreas Park
Park
9 acres0.3 mi of trail
Dog rules not recorded
No trailhead mapped yet
Town Estates Park
Park
6 acres0.3 mi of trail
Dog rules not recorded
No trailhead mapped yet
All 25 parks & preserves
Dry Creek Pioneer Regional Park1,664 acres · 17.3 mi of trail · East Bay Regional Park District
DirectionsWilliam Cann Civic Center Park13 acres · 1 mi of trail
DirectionsCasa Verde Park12 acres · 0.8 mi of trail
Mariner Landing3 acres · 0.4 mi of trail
Arroyo Park9 acres · 0.3 mi of trail
DirectionsSan Andreas Park9 acres · 0.3 mi of trail
Sea Breeze Park7 acres · 0.3 mi of trail
DirectionsTown Estates Park6 acres · 0.3 mi of trail
Willaim Cann Memorial Park9 acres · 0.2 mi of trail
Coyote Hills R.P.8 acres · 0.2 mi of trail
DirectionsAccinelli Park4 acres · 0.2 mi of trail
Charles F Kennedy Park10 acres · 0.1 mi of trail
DirectionsOld Alvarado/Cesar Chavez Park4 acres · 0.1 mi of trail
DirectionsGarin Regional Park Restricted Area1,198 acres · East Bay Regional Park District
Contempo Park9 acres
DirectionsVeterans Memorial Park8 acres
Seven Hills Park4 acres
DirectionsDrigon Dog Park3 acres
DirectionsDry Creek Park2 acres
DirectionsGarin Regional Park1 acres · East Bay Regional Park District
Alden E. Oliver Sports Park1 acres
DirectionsUnion Landing Park1 acres
Sugar Mill Park1 acres
DirectionsWillow Park1 acres
Decoto Plaza1 acres
DirectionsWho protects it
3,183 conserved acres
26% of Union City’s land. Who manages Union City’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Regional agency2,986 ac
Town or city139 ac
U.S. Fish and Wildlife Service95 ac
State fish & wildlife24 ac
Private owners2 ac
Local Park · 3,006 acLocal Recreation Area · 119 acNational Wildlife Refuge · 95 acUnknown Easement · 20 acState Conservation Area · 4 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Dry Creek Pioneer Regional Park Local Park | Regional agency | 1,666 | Open |
| Garin Regional Park Local Park | Regional agency | 1,202 | Open |
| Alameda Creek Regional Trail Local Recreation Area | Regional agency | 117 | Open |
| Don Edwards San Francisco Bay National Wildlife Refuge National Wildlife Refuge | U.S. Fish and Wildlife Service | 95 | Restricted |
| William Cann Civic Center Park Local Park | Town or city | 18 | Open |
| Casa Verde Park Local Park | Town or city | 12 | Open |
| Arroyo Park Local Park | Town or city | 11 | Open |
| Town Estates Park Local Park | Town or city | 11 | Open |
| Charles F. Kennedy Park Local Park | Town or city | 10 | Open |
| Sea Breeze Park Local Park | Town or city | 8 | Open |
5 smaller protected places aren’t shown.
Things to do
69 places to go in Union City
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Union City
Accinelli Park PlaygroundIn Accinelli Park
DirectionsCasa Verde (San Carlos) PlaygroundIn Casa Verde Park
DirectionsCasa Verde (San Juan) PlaygroundIn Casa Verde Park
DirectionsCasa Verde (San Mateo) PlaygroundIn Casa Verde Park
DirectionsCerruti Park PlaygroundIn Cerruti Park
DirectionsCharles F Kennedy Park PlaygroundIn Charles F Kennedy Park
DirectionsContempo Park PlaygroundIn Contempo Park
DirectionsDecoto Plaza PlaygroundIn Decoto Plaza
Directions14 more playgrounds
Heritage Oak Park
DirectionsJolly Roger Land
DirectionsKennedy Youth Center PlaygroundIn Charles F Kennedy Park
DirectionsMariner Landing PlaygroundIn Mariner Landing
DirectionsSea Breeze Park PlaygroundIn Sea Breeze Park
DirectionsSeven Hills Park PlaygroundIn Seven Hills Park
DirectionsShorty Garcia Park Playground
DirectionsSugar Mill Park PlaygroundIn Sugar Mill Park
DirectionsTidewater Park Playground
DirectionsTown Estates Park PlaygroundIn Town Estates Park
DirectionsUnion City Pyramid
DirectionsUnion Landing Park PlaygroundIn Union Landing Park
DirectionsWilliam Cann Civic Center PlaygroundIn William Cann Civic Center Park
DirectionsWillow Park PlaygroundIn Willow Park
Directions56 playgrounds are on OpenStreetMap in all; the list shows named ones from the first 30.
Dog parks in Union City
2 dog parks without a name on the map. Tap “Show all on map” to see them.
Scenic views in Union City
1 scenic view without a name on the map. Tap “Show all on map” to see it.
Peaks in Union City
Gossip Rock1,079 ft elevation · In Dry Creek Pioneer Regional Park
DirectionsTolman Peak997 ft elevation · In Dry Creek Pioneer Regional Park
DirectionsPicnic areas in Union City
8 picnic areas without a name on the map.
Trails & water
11 named trails and 1 lakes & rivers
Named trails
Open to bikes · 11.7 miHorses · 14.2 miUnpaved · 11.2 mi
High Ridge Loop Trail4.1 mi
San Francisco Bay Trail2.7 mi
Tolman Peak Trail2.0 mi
Meyers Ranch Trail1.6 mi
South Fork Trail1.3 mi
Pioneer Trail1.2 mi
F.D. 1430.8 mi
Gossip Rock Trail0.7 mi
Dry Creek Trail0.6 mi
May Trail0.1 mi
1 more trails
Union City Trail
0.1 miLakes & rivers tap for directions
Biking & sports
37 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
30 mi
painted or protected bike lanes
3.7 mi
off-road bike paths
3.2 mi
shoulders & shared lanes
San Francisco Bay TrailBike route
1.5 miCourts & fields
36Basketball
15Baseball
13Tennis
7Soccer
2Tracks
1Skate park
1Football
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Union City: April to August
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) | 9.8 | 10.7 | 11.9 | 13.1 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.1 | 10.1 | 9.6 |
| High (°F) | 59 | 62 | 66 | 70 | 75 | 80 | 83 | 83 | 82 | 76 | 66 | 58 |
| Rain (in) | 3.6 | 3.6 | 2.8 | 1.4 | 0.7 | 0.1 | 0.0 | 0.0 | 0.1 | 0.9 | 2.0 | 3.7 |
July is the driest month (under 0.1 in) and the warmest (highs of 83 °F). 3.7 inches fall in December, the wettest month. The climate in Union City →
Next door
Union City and its neighbors
Tap a town to see its outdoors.
Questions about parks and trails in Union City
Where can I hike in Union City?
The longest trail networks: Dry Creek Pioneer Regional Park, 17.3 miles; William Cann Civic Center Park, 1 miles; Casa Verde Park, 0.8 miles; Mariner Landing, 0.4 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Union City is conserved land?
26% of its land, against a typical 4% for a California town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Union City’s trails?
Dry Creek Pioneer Regional Park and William Cann Civic Center Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Union City?
37 miles of bike routes are on the map: 30 of painted or protected lanes, 3.7 of off-road paths and 3.2 of shoulders and shared lanes. Named routes: San Francisco Bay Trail.
Is there public land near Union City?
43,431 acres of parks and open public land lie inside Union City or within 10 miles of it (PAD-US), 1,969 of them inside the city line.
How much outdoors does Union City have?
Ahead of 97% of U.S. towns on the Outdoors grade, #71 of 847 in California. 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 Union City neighbors.
Share a tip
Sources
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 →