Big Break Regional Trail provides great mountain biking routes.
From the West (Walnut Creek, Oakland) - From I-680 northbound, transition onto Hwy. 242 towards Concord/Pittsburg, then Hwy. 4 eastbound towards Stockton/Pittsburg. Take right exit 30 toward CA-160/Sacramento//Rio Vista (just past Hillcrest Avenue Exit; do NOT continue straight on Highway 4), Merge onto CA-160; Take exit 1-A East 18th/Main Street (first exit on Highway 160), Turn right (east) at the bottom of the exit onto Main Street; proceed east a little over 1 mile, Turn left onto Big Break Road; Turn right just past the last houses on the right into Big break Regional Shoreline.
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