If you're looking for a weekend of rest and relaxation, you need to book in to one of the UK's best spa hotels. A great spa hotel should deliver all you need to leave feeling relaxed and refreshed: good food, comfy beds, and variety of pools, saunas and steam rooms to dip in and out of, and luxurious treatments. In the past we've rounded up the best London spas, but if you're looking to escape to the countryside, this list below – expertly reviewed by our writers – should provide some excellent inspiration.