Briones Regional Park
A beautiful 5,756 acre park covered in grassy hills and shady oak trees. the park is located south of highway 4 off reliez valley road. briones is a hikers paradise located in the heart of the busy san francisco bay area. east bay regional park district headquarters +1 510 562-park, group picnic reservations +1 510 636-1684, group camping reservations +1 510 636-1684. the park is open 8am-10pm. $5 per vehicle when the kiosk is attended. (http://www.ebparks.org/pa...).
Carquinez Strait Regional Shoreline
Located immediately to the northwest of the John Muir NHS and extending to the Carquinez Strait, the ridgelines of this park offer extensive views of Mt. Diablo and the cities at its base, the Sacramento River Delta, the Mothball Fleet, Mt. Tamalpais and Mt. St. Helena. On clear winter days the snow-capped Sierras may be seen. Wild turkeys, hawks, deer, and other wildlife call the park home. In the spring cows are allowed to graze on the grassy hills. The park hosts a segment of the Bay Area Ridge Trail (http://www.ridgetrail.org/). Great for a short day hike 1 to 5 miles.
Martinez Skatepark
Is located on north court street, a free 10,000 foot skatepark for skateboarders and roller bladers
Martinez Marina
Features trails, a marsh, a pond, two playgrounds and a fishing pier. located in downtown martinez near ferry street and the amtrak station. bicycling is allowed on the trails. dogs are allowed in some areas of the park but not near the ducks and pond.
Pine Meadows Public Golf Course
A small and simple par three course. A great place to shoot a quick round with friends.
Walk Across the Martinez-Benicia Bridge
On August 29, 2009, a 2.2 mile Pedestrian and Bicycle Path was opened across the bridge to Benicia, filling a major gap in the Bay Area Ridge Trail.