This uprooted trunk is outside the tidal zone, but it may well have been on the beach at one time. Its luxuriant coat of lichens (shown here in fruiting stage, I believe) probably owes its vigor to the particular microclimate in which the trunk is located. This spot is right next to the “LOVE” rock, a location that is exposed to plenty of rain, salt air, and yes, even sunshine.
A rare treat for a mycologist, I’d venture.