1
Leo J Ryan Memorial Park
Park
20 acres2 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
Outdoors · Foster
Foster, CA parks, trails & bike paths
About 1.8% of Foster is conserved land, roughly 222 acres. There are about 9.0 miles of mapped trails, and the biggest networks are in Leo J Ryan Memorial Park (2 mi) and Boothbay Park (0.6 mi).
Conserved land, trails, parks and bike routes in Foster, measured from OpenStreetMap and USGS data.
At a glance
Foster outdoors
Conserved land
1.8%
222 of 12,637 acres
Trails
9.0 mi
0.5 mi per sq mi · 6 on conserved land
Parks & preserves
25
7 conserved acres per 1,000 residents
Bike routes
22.5 mi
9.6 mi lanes · 11.4 mi off-road paths
Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Map
Conserved land, trails & bike routes
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk
Parks & preserves with trails
Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
2
Boothbay Park
Park
11 acres0.6 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
3
Catamaran Park
Park
6 acres0.4 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
4
Edgewater Park
Park
11 acres0.3 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
All 25 parks & preserves
Showing 1–10 of 25 parks & preserves
Leo J Ryan Memorial Park20 acres · 2 mi of trail
Boothbay Park11 acres · 0.6 mi of trail
Catamaran Park6 acres · 0.4 mi of trail
Edgewater Park11 acres · 0.3 mi of trail
Port Royal Park4 acres · 0.2 mi of trail · City of Foster City
Kildeer Park2 acres · 0.2 mi of trail
Shad Park2 acres · 0.2 mi of trail
Shells Bicycle Jumps1 acres · 0.2 mi of trail
Triton Park1 acres · 0.2 mi of trail
Sea Cloud Park23 acres · 0.1 mi of trail
Who protects the land
222 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes9.6 mi
- Off-road bike paths11.4 mi
- Shoulders & shared lanes1.5 mi
Courts & fields
- Tennis30
- Basketball16
- Baseball7
- Soccer7
- Beach volleyball3
- Pickleball3
- Skate park1
Counts include school and college facilities, which aren't always open to the public.
Nearby
Foster and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Foster | 1.8% | 9.0 mi | 25 |
| San Mateo | 7.5% | 20.6 mi | 33 |
| Redwood City | 23.2% | 14.3 mi | 33 |
| Belmont | 10.8% | 21.8 mi | 12 |
| Hayward | 30.3% | 69.6 mi | 46 |
Trail talk
Conditions & tips from neighbors
No recent posts about Foster's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.
Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 20-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.