An alternative is to take a ferry from Seattle to Victoria (or you could rent a car in Seattle and take it on the ferry from Port Angeles to Victoria). It's a lovely place and June will be an excellent time to travel on Vancouver Island. You can go to Tofino where there are great seaside hotels on the west coast of the island and also there are some really nice little resorts on the east coast. The farther north you go the more the remote and mountainous it becomes. There are ferries to Vancouver on the mainland from the island at Nanaimo, Duke's Point, and Swartz Bay. You could return the car to Seattle via an easy drive.