Bus in Port Townsend

Jefferson Transit

Runs an hourly loop around Port Townsend and has services to points as far away as Sea-Tac Airport.
Boat in Port Townsend

Puget Sound Express

Whale-watching tours between Port Townsend, the San Juan Islands and Seattle.
Ferry in Port Townsend

Washington State Ferries

Goes to/from Coupeville on Whidbey Island (35 minutes); reserve.
Bus in Port Townsend

Olympic Bus Lines

Buses from the Olympic Peninsula to Seattle.