Route 154 is a state highway located in the U.S. state of California. It runs through Santa Barbara County, connecting the towns of Los Olivos and Santa Barbara. The route is approximately 30 miles long and offers scenic views of the surrounding landscapes, including vineyards and rolling hills. The highway serves as an important link for local residents and visitors, providing access to various attractions in the region. It is also known for its proximity to Lake Cachuma and the Santa Ynez Valley, making it a popular route for those exploring the area's natural beauty and recreational opportunities.