The Oregon Coast may not look like cowboy country, but there are plenty of horses here. Several campgrounds have facilities specifically for people with horses. You can also take a horse on a guided ride at many locations, some along trails and others onto the ocean sand.

Stagecoach Horse Campground (Tillamook)
Emerald Valley Equine Center (Beaver)
Highland Horse Center (Lincoln City)
Northwest Equine Outfitters (Salem)
Seal Rock Stables (Seal Rock)
C&M Stables (Florence)
Bandon Beach Riding Stables (Bandon)
Hawk's Rest Ranch (Pistol River)