Junction of highway #12 - Photo City of Aberdeen, Washington welcome sign City of Aberdeen, Washington. South to Astoria Oregon. East to communities of Central Park, Washington - Montesano, Washington. East to Lake Sylvia, Washington State Park. Lake Sylvia State Park is a quiet, 233-acre camping park with 15,000 feet of freshwater shoreline. The park is an old logging camp in a wooded area halfway between Olympia and the Pacific shore. The park has 35 tent spaces, one dump station, three restrooms (one ADA) and six showers (four ADA). In addition, there are two primitive tent sites for hikers and bicyclers. Most sites will accommodate either a tent or an RV. Maximum site length is 30 feet (may have limited availability). NOTE: For highway travel south via Washington Highway #101 - See Milebymile.com Road Map Highway Travel Guide WA. US #101 - Oregon State Line to city of Aberdeen, WA. for driving directions. Pacific Coast Scenic Byway From Oregon to Olympia this highway runs along the Pacific coast turning inland along the Olympic Mountains then returning along the coastline of the interior straights.