The Danish Wadden Sea takes its beginning at the river valley in Varde in the north and ends at the border in the south, an area of about 100 km². Two times a day, with a 12½ hours interval, it is high tide; the lowest tide is about 6 hours after the high tide. One billion cubic meter of water pass through the channels between the Wadden Sea islands Fanø, Mandø and Rømø at every high tide and spread out over the mud flats between the islands and the main land. The water is always passing through. The tide shapes the landscape, moves great sand and clay areas and creates islands and channels in the world of the Wadden Sea.

When the water is withdrawing, you can take off your shoes and go for a walk on the mud flats. Your feet will feel how the surface changes from soft mud to sand, where your marks will be invisible. On the mud flats you will often be joined by migrating birds.

Facts about the Wadden Sea:

• Difference between high and low tide:
at Højer about 2 m
at the Bay of Ho about 1,5 m
• See DMIs timetable on tide
• The Danish part of the Wadden Sea covers about 850 km and is preserved as nature reserve.
• The sea water in the Wadden Sea has a salt content of about 25 to 35 per mille.
• The Wadden Sea is one of the world’s most important wetlands. It has the status of wild and nature reserve.