The trail follows an access road down to a tunnel that passes through to Partington Cove. In the 1800's this was used to transport tanbark onto schooners anchored just offshore in Partington Cove. Remains of the loading mechanism can be found today if you look closely.
Tanbark Trail to Tin House Trail starts on the other side of Hwy 1 trail head.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.