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Best trails in Napa County Regional Park

223 Reviews
Explore the most popular trails in Napa County Regional Park with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.
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Map of trails in Napa County Regional Park
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Top trails (1)
#1 - Lake Hennessey Shoreline Trail / Alta Hennessey Loop
Napa County Regional Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(223)
Length: 5.5 mi • Est. 2 h 42 m
Lake Hennessey Shoreline Trail / Alta Hennessey Loop is a 5.5 mile heavily trafficked loop trail located near St. Helena, California that features beautiful wild flowers and is rated as moderate. The Show more