Skyline Wilderness Park (2201 Imola Ave, Napa CA 94559)

From I-80: Take CA-12 West toward Napa/Sonoma. Turn right onto CA-29 North. Veer slightly to the right on CA-221 North toward Downtown Napa/Lake Berryessa. Turn right at Imola Ave., and the entrance to the park is approximately 1 mile on the right.
From US-101: Take CA-37 East toward Napa/Vallejo. Turn left on Ca-29 North/Sonoma Blvd. Veer slightly right on CA-221 North toward Downtown Napa/Lake Berryessa. Turn right at Imola Ave. and the entrance to the park is approximately 1 mile on the right.
From CA-12/121 (Carneros Hwy): Turn left on CA-29 North. Exit Imola Ave. and turn right at the light. Stay straight on Imola for 2.5 miles (approximately 6 minutes and 5 lights). Entrance to the park will be on the right.