Complex sentence: In Whatcom County, SR 11 travels northwest through part of the oldest state park in Washington, the Larrabee State Park, to travel near communities on the shores of Chuckanut Bay.
Split into simpler sentences: In Whatcom County, SR 11 travels northwest through part of the oldest state park in Washington, the Larrabee State Park. It then travels near communities on the shores of Chuckanut Bay.