The German short-break expert kurzurlaub.de has a great deal with a saving of 40% on the 4-star-superior Kaiser Spa Hotel zur Post on the island Usedom in the Baltic Sea for just £82 (€99) per person, including all the following extras:
About the hotel: This 4-star-superior hotel Kaiser Spa Hotel zur Post is a 2-minute walk from the Bansin beach, on the island of Usedom. It offers a large spa (1200 square metres) with an indoor and outdoor pool and different saunas. Most rooms have a balcony or terrace.
You can reach Usedom by flying to Berlin. From there, you can take a train or rent a car.