Campgrounds for 40 ft 5th wheel near Coeur d'Alene and Spokane July 2025

The trip involves traveling from Evanston, WY to Spokane, WA for a convention, then heading down the West Coast to the Redwoods, and finally to Island Park, WY. Accommodations along the route should accommodate a 40 ft toy hauler with 3 slide outs, and offer access to outdoor activities such as beaches, lighthouses, wildlife viewing, and festivals, especially around the 4th of July in Coeur d'Alene, ID.