
Its name is the big clue to this village's raison d'etre. Stay: Just across the Spanish border are the Pyrenean Mountain Apartments, where a week with Inntravel (01653 617906 .uk) costs from £398 per person 6 Chaudfontaine, Belgium They are very popular with skiers and walkers, and are open daily from 8.30am to 8pm (except for a break from the end of November to the beginning of December). These baths date back to Roman times and offer a chance to soak at 37-40C with stunning views of the valleys below. For something more natural, try the Bains de Dorres (00 33 4 6804 6687 ) in the Pyrenees close to the Spanish border. Stay: Rural Retreats (01386 701177 .uk) has a two-bedroom apartment in the Royal Crescent from £363 for a three-night stay 5 Bains De Dorres, Franceįrance takes its thermal baths very seriously, surrounding them with white-coated doctors and state-sanctioned holidays. Fed by springs below the city which pump out a million litres of water a day at 45C, the spa was designed by Nicholas Grimshaw and features a steaming, open-air rooftop pool with mesmerising views across the honey-coloured Georgian city. Once a holiday camp for Roman soldiers resting after the rigours of patrolling Hadrian's Wall, Bath (08 ) regained its crown as Britain's number one hot spring destination in 2006, with the opening of a new £45m public spa. Stay: Hurdlow Grange (07866 778847 .uk) has three-night breaks in a cottage sleeping six from £456 4 Bath A day pass for both pools costs £5 for adults and £2.50 for children. There's also an outdoor swimming pool fed by the spring, which is open from May to October.

More pleasingly warm than piping hot, the 18th-century indoor swimming pool at the New Bath Hotel (01629 583454 .uk) in Matlock Bath is filled by thermal waters. Stay: Hveravellir Lodge (00 3 hveravellir.is), dormitory beds from 3,500 krona (£21.60), double rooms from 10,000 krona per person (£61.70) 3 Matlock Bath, Derbyshire

There's a hot pool near one of the huts but the geothermal water also feeds into nearby streams for more temperate bathing. Hveravellir (00 3 hveravellir.is), means "hot spring plains" and is a nature reserve bracketed by two glaciers. Stay: Landmannalaugar Hut sleeps 110 (bring your own sleeping bag) and costs around 2,200 krona (£13.50) per night or there is a campsite nearby (00 3, July to September only) 2 Hveravellir, IcelandĪnother slice of unadulterated nature in Iceland.
