Old grove redwood forest. There's two ridge hikes which takes a few hours to walk as well with solid incline.
For those of you who need a little more
Tons of bluff hikes and bouldering. Also a kid friendly lagoon beach with warmer water and no waves. Tons of sea lions, otters, osprey and pelicans.
Cute town with good eats and eclectic shops. The Altamont Cafe is a staple
Upscale shopping / dining district.
My local favorite hike up to epic tree which has a commanding view of the valley and ocean.
Eclectic shopping and food
Our neighborhood winery who also happens to sell to the French Laundry so I've been told.
Surfing
Some amazing hikes from the valley to the ridge and down to the ocean or over to the river. Its some 3000 acres of a hidden state park that no tourist knows about, solid mountain bike riding.
Local moutain biking mecca