From Seattle:
Take I-5 Northbound, Take the WA-525 N exit, EXIT 182, toward WA-99, Merge onto WA-525 N, Take the MUKILTEO-CLINTON FERRY, Go NORTH on WA-525 about 22 miles, WA-525 becomes WA-20 for another 5.5 miles, Turn right onto North Main St, Turn left onto Front Street.

From the Olympic Peninsula:
Take the Port Townsend - Keystone Ferry located in downtown Port Townsend. After disembarking from the ferry, go North on Engle Rd about 4 miles until you reach Coupeville.

From Bellingham:
Take I-5 South and take Exit 230 (HWY 20/Anacortes/Burlington). Turn Right at Goldenrod Rd. Turn Left at WA-20. Travel 11.6 miles and Turn Left to stay on WA-20. Stay on WA-20, 26 miles to Coupeville.