The 27th annual big sur international marathon is set for this Sunday. Runners will race along highway-1, from big sur to carmel. Cal-trans and race officials are reminding drivers to avoid the area if possible. There will be limited access to highway-1 during the marathon, which is expected to last from 5:30 a.m. to 1 p.m. for more information about traveling through the area during the race, visit the marathon’s website: bsIm.org.