There is a rest area for both southbound and northbound lanes on the southern end of the tunnel, the southernmost one along US 101.

An alternate bypass to this section of US 101 between Santa Barbara and Los Olivos is provided by SR 154 capped by the Cold Spring Canyon Arch Bridge near the summit of San Marcos Pass.

SR 154 cuts directly between Santa Barbara and Los Olivos in a northwestern direction, whereas US 101 runs along the coast of the Pacific Ocean about 25 miles (40 km) west before turning north passing through Buellton to meet up with SR 154 near Los Olivos.

In Wayne’s World 2 and Sideways, Mike Myers and Paul Giamatti with Thomas Haden Church are all heading north, and therefore pass through the tunnel in the correct northbound direction.

Location: N-bound State Hwy 101 rest stop (P.M. 46.9), 1.5 mi NW of Gaviota.