After looping through ONP, we will be leaving Port Angeles and headed to the North Cascades (we have lodging in Marblemount). I'm planning to drive to Port Townsend and take the ferry to Whidbey Island and drive up to Marblemount. Because this involves a boat crossing, I'm a little unsure of the timing and logistics.
Google Maps says it should take an hour drive from PA to PT, and 2 hours from Fort Casey to Marblemount. Do these seem realistic, and how long should I allot for the ferry crossing (with our car)? I'd prefer not to make reservations since I don't know exactly when we'll get there, but is this a busy route which will have a lengthy wait if I don't do so? Finally, we likely won't have much time to explore Whidbey, but once we're driving through, are there 2-3 stops/scenic areas that we should try to include along the way?