WHAT: Guadalupe Beach  HIGHLIGHTS: Shore birds, including the California Least Tern and Snowy Plover are regular inhabitants of the area and a joy to watch.  WHO SHOULD GO: Walkers, Bird Watchers and Nature Buffs  HOW TO GET THERE: From Hwy 101 exit west on Main Street (Hwy 166), drive nine miles to the Hwy 1 and West Main Street Junction and continue west five miles to pass through the entrance gate.  WHERE TO PARK: Proceed to the preserve parking lot on the beach.  TRAIL CHARACTER and DISTANCE: Walking on the beach is easier when the tide is low but very exhilarating when the tide is high. Walk four miles south to Muscle Rock or approximately 10 miles north to the Oso Flaco Area.  CAUTION: Horses and dogs are always prohibited on this trail. Area is open from 6am to 8pm during the summer and 6am to 6pm after the time change. Snowy Plover nesting areas are closed from March through July, this area is signed.