Life Travels

We are dropping off a rental car next month at Canada place, is there somewhere nearby to fill gas or should we prepay fuel since we are driving from Seattle?

We are flying into Seattle for an Alaskan Cruise leaving out of Vancouver. Would it be ok to take the Amtrak Cascade Train to Vancouver the morning our cruise? It gets into Vancouver at 11:45 am but my husband is nervous about taking the same day as departure. Also what transportation is available from the Train station to the cruise terminal?