rthquake Lake Geologic Area;.
Just north of West Yellowstone, along US287 (west of US191) is the Earthquake Geological Area. There is a self drive tour along the 20 miles or so, with all the significant places from this 1959 event. Get your driving guide from the visitor centre in West Yellostone.
If you are up to doing the walks to where all the ruins still are, allow a couple of hours for these 20 miles.
Lifey
Vancouver to Victoria via Public Transit
Unfortunately, the ferry service between Vancouver and Victoria is nothing like direct. The ferry actually runs between Tsawwassen (18 miles south of Vancouver) and Swartz Bay (20 miles north of Victoria). There is bus service from Vancouver to Tsawwassen (Route 620) and from Swartz Bay to Victoria (Route 70), so it would be possible to use solely public means to get around Canada but taking four separate transit modes (including the train up from Seattle to Vancouver is probably more trouble than it's worth. I've never had any real problem taking a US rental into Canada. Just let them know when you pick up the vehicle of your intentions to cross the border and they will supply you with the necessary paper work - mostly just proof of insurance.
AZBuck