Set off to navigate the rapids of the River Mijares in Castellón aboard a single-seater open kayak on a trip lasting a total of three and a half hours (including one and a half hours of hands-on action on the water). Accompanied by qualified instructors, you’ll learn to navigate currents, eddies and backwaters in a very exclusive group of no more than five participants. What’s more, the experience includes tickets to relax afterwards at the area’s famous thermal baths.