Free camping and Big Sur don’t really go together. However, the coastline closer to Gorda meets up with the Los Padres National Forest, where dispersed camping is permitted within certain guidelines; mostly, don’t block the road. All of the “campsites” are just turn outs on the side of the road so if you can’t find one right away, keep moving. The locals (the mega rich) turn their noses at boondockers so they fight to have law enforcement give tickets to people for small reasons, like blocking the road. Anyway, if you can score a spot, you’ll have lovely views of the water and mountains and be in peaceful solitude free of noise and light pollution. From the main highway 1, we turned in at the sign for Treebones Resort and went the opposite direction of the resort on Los Burros Road (it’s now showing as Will Creek Rd on Google Maps now for some reason).
Technically the max stay would be 14 days. Remember that camping in the turnouts along highway 1 is not permitted.