SANTA BARBARA (AP) — The last of several Southern California beaches soiled by last spring’s massive oil spill reopened Friday to enthusiastic crowds that quickly jammed its campgrounds to capacity.Refugio State Beach opened to day visitors at 8 a.m. and began letting overnight campers in at noon, said Eric Hjelstrom, the beach’s section superintendent. By early afternoon, its 60 camping spaces were taken.“Judging from the reaction, the cleanup was a huge success because they’re all out there having fun,” Hjelstrom said by phone from the beach. “We’re full of happy campers.”Friday was a perfect day to reopen, he said, with blue, sunny skies and temperatures in the mid-70s.Two small sections of the beach remain closed for further cleanup.