Indulge in the world's most luxurious spa hotels

Settled within the rugged Cornish clifftops is Scarlet Hotel - Adults Only; an eco-sanctuary with far-reaching views of the crashing waves and sandy coastline that blend into the Atlantic. This adult only property exudes natural calm seamlessly bringing the outside in with simple design aesthetic and tall glass walls showcasing the wild natural surrounds. Each of the airy rooms has an outdoor space and sliding doors so guests can be soothed by the sound of the sea and wind.

The Scarlet’s restaurant offers captivating views of the coastline and serves up seasonal, responsibly sourced food alongside sustainable, slow-aged wine. The restaurant is open for breakfast, lunch, afternoon tea and dinner daily. The menu showcases natural and flavourful food. Tasting menus are available for a journey through the careful concoction of different tastes, textures and techniques at the Scarlet restaurant.

Scarlet Spa’s an eco spa featuring a indoor pool, outdoor natural reed pool, clifftop cedar wood sauna, restorative steam room and wide views of the blue Atlantic. Treatments take place in tented, lantern-lit rooms and include stillness afterwards in the deep relaxation room’s suspended cocoon pods.

Merlin Golf Club and Driving Range is a 5-minute drive away, and Newquay can be reached in 15 minutes by car. Padstow is within a 20-minute drive and Newquay Cornwall Airport is a 7-minute drive from the building.

With a stay at Trim Castle Hotel in Trim, you'll be just steps from Trim Visitor Centre and St Patrick's Church. This family-friendly hotel is 0.2 mi (0.3 km) from Trim Castle and 0.2 mi (0.4 km) from Sheep's Gate.

When you stay at Great North Hotel in Newcastle-upon-Tyne, you'll be near the airport, within a 10-minute drive of Quayside and St. James' Park. This hotel is 0.9 mi (1.5 km) from City of Newcastle Golf Club and 1.8 mi (2.9 km) from Newcastle Racecourse.

In the heart of Karlsruhe, Rio Hotel is within a 5-minute drive of Prince Max Palace and Karlsruhe Zoo. This hotel is 1.1 mi (1.8 km) from Karlsruhe Convention Centre and 1.3 mi (2.1 km) from Karlsruhe Palace.

Dating from 1903, this 4-star Superior, Art-Nouveau hotel offers attractive rooms and apartments in picturesque Traben-Trarbach. It lies right on the banks of the Moselle and features in-house spa facilities.

The elegant rooms are located in the main building of the Romantik Jugendstilhotel Bellevue and some feature antique furnishings. Some rooms and suites are situated in the annex, 80 metres away

Guests are welcome to keep in touch via free WiFi internet access, provided in all rooms.

Look forward to the Bellevue's delicious, complimentary breakfast each morning.

Take a dip in the pool or relax in the sauna or rooftop garden. A range of massages and beauty treatments is also available in the hotel's beauty lounge.

The cosy Stübchen parlour is ideal for enjoying snacks and refreshments throughout the day, while select wines and excellent cuisine await you in the Belle Epoque restaurant.

Why not round off the evening in the bar with a freshly tapped beer or your favourite cocktail.

You can reach the train station on foot in just 5 minutes from the Romantik Jugendstilhotel Bellevue.

With a stay at Hotel Manos Premier in Brussels (Sint-Gillis), you'll be a 2-minute drive from Avenue Louise and 6 minutes from European Union Parliament Building. This spa hotel is 1.7 mi (2.7 km) from Manneken Pis Statue and 1.7 mi (2.7 km) from La Grand Place.

Located in Heijenrath, Best Western Hotel Slenaken is in the mountains, within a 10-minute drive of De Zuid Limburgse Golf & Country Club and Mosaqua. This golf hotel is 12.1 mi (19.6 km) from Aachen Cathedral and 13.2 mi (21.3 km) from Vrijthof.

With a stay at Fitzpatrick Castle Hotel in Dublin, you'll be in the historical district, within a 15-minute drive of University College Dublin and Dalkey Island. This hotel is 7.6 mi (12.2 km) from Aviva Stadium and 8.8 mi (14.1 km) from St. Stephen's Green.

A stay at Glenroyal Hotel & Leisure Club places you in the heart of Maynooth, within a 10-minute walk of Maynooth Castle and Maynooth National Science Museum. This family-friendly hotel is 15.3 mi (24.6 km) from Dublin Zoo and 17.2 mi (27.7 km) from Emerald Park.

A stay at 25hours Hotel Terminus Nord places you in the heart of Paris, within a 10-minute drive of La Machine du Moulin Rouge and Palais Garnier. This hotel is 2.2 mi (3.5 km) from Notre-Dame and 3 mi (4.8 km) from Luxembourg Gardens.

With a stay at Met Hotel Amsterdam in Amsterdam (Nieuw-West), you'll be a 4-minute drive from Vondelpark and 6 minutes from Rijksmuseum. This luxury hotel is 2.5 mi (4 km) from Van Gogh Museum and 5.2 mi (8.3 km) from Dam Square.

A stay at Sandman Signature Glasgow Hotel places you in the heart of Glasgow, within a 15-minute walk of Buchanan Street and George Square. This hotel is 1.2 mi (2 km) from OVO Hydro and 1.1 mi (1.8 km) from University of Glasgow.

A stay at Hôtel Régent Contades By Stay Collection places you in the heart of Strasbourg, within a 15-minute walk of Strasbourg Christmas Market and Strasbourg Cathedral. This spa hotel is 1.4 mi (2.3 km) from Train Station Square and 0.1 mi (0.1 km) from St. Paul Church.

Located in Tenby, 2.4 km from North Tenby Beach, Heywood Spa Hotel provides accommodation with a garden, free private parking, a shared lounge and a terrace. Providing a restaurant, the property also has a bar, as well as an indoor pool and a hot tub. The accommodation offers room service, a 24-hour front desk and luggage storage for guests.

At the hotel, all rooms are fitted with a desk. Complete with a private bathroom equipped with free toiletries, guest rooms at Heywood Spa Hotel have a flat-screen TV and air conditioning, and selected rooms come with a balcony. At the accommodation each room has bed linen and towels.

Guests at Heywood Spa Hotel will be able to enjoy activities in and around Tenby, like hiking.

The property has a hairdresser's and business centre.

Oakwood Theme Park is 19 km from the hotel, while Folly Farm is 10 km away. Cardiff Airport is 140 km from the property.

With a stay at Chalgrin Boutique Hotel, you'll be centrally located in Paris, within a 10-minute walk of Champs-Élysées and Arc de Triomphe. This boutique hotel is 0.9 mi (1.5 km) from Palais des Congrès de Paris and 1.1 mi (1.8 km) from Place du Trocadéro.

Located among scenic vineyards, this 4-star hotel and restaurant in Koblenz is a 10-minute walk from the Moselle River. It offers free Wi-Fi, spa facilities and outdoor terrace.

All brightly furnished rooms at the WohnGut Koblenz feature cable TV, telephone and private bathroom.

A breakfast buffet is served at the Wohngut Koblenz every morning. Guests can also enjoy fish and game specialities in the Mediterranean-style conservatory or elegant dining area.

The new spa area at Mosel Wohngut Koblenz features a sauna, steam room and infrared sauna. This is open until 21:00 daily for a small additional fee.

The WohnGut Koblenz provides a comfortable base for activities including hiking, horse riding, tennis, and bowling. Impressive castles and idyllic valleys wait to be discovered.

Free parking is also available at the WohnGut Koblenz.

A stay at Relais Christine places you in the heart of Paris, within a 10-minute walk of Luxembourg Gardens and Rue de Rivoli. This luxury hotel is 0.5 mi (0.8 km) from Notre-Dame and 0.7 mi (1.1 km) from Louvre Museum.

When you stay at Les Etangs de Corot in Ville-d'Avray, you'll be on a lake, within a 10-minute drive of Palace of Versailles and Parc des Princes. This luxury hotel is 5.3 mi (8.6 km) from Paris Expo and 6.4 mi (10.3 km) from La Défense.

A stay at Bliss Boutique Hotel places you in the heart of Breda, steps from De Kerkschat - Grote Kerk and Grote of Onze Lieve Vrouwekerk. This casino hotel is 17.5 mi (28.1 km) from Efteling Theme Park and 0.1 mi (0.1 km) from Grote Kerk.

The Tynedale is set just 20 metres from the beach in the seaside resort of Llandudno. It offers modern rooms, free private parking and regular live evening entertainment.

With a TV, free tea and coffee and ironing facilities, each spacious room also has bright, stylish décor. Some rooms also feature a flat-screen TV and views of the coast.

Centrally placed on Llandudno’s promenade, the pier is a 10-minute walk away. A range of restaurants and bars are within 5 minutes’ walk of the Tynedale, as is Llandudno Rail Station.

The sleek restaurant and bar provides a varied menu with both modern and classic dishes.