The Danish Counsil for Safe Swimming has listed the following points which should be observed: 

• Never go swimming alone 
• Do not swim within one hour after taking a meal 
• Do not go swimming after strains, such as running, wait until you are relaxed. 
• When swimming, follow the coast line 
• Never go swimming in mires and marlpits 
• Never stay for too long in the water - do not get cold 
• Never shout for help in jest 
• When swimming, stay close to lifesaver post or station 
• Keep an eye on children, your own as well as others' 
• Never go out deeper than where the water reaches your waistline 
• Never go out where you cannot reach bottom 
• Leave air mattresses on the shore 
• Never swim after inflatable balls or animals, etc. 
• Never dig holes into the dunes or slopes, and never crawl into holes, whether natural or manmade. Every year, accidents happen as a result of caving in

Along the North Sea coast also observe the following: 

• Never go swimming in rough sea
• Beware of sea currents along the coast
• Unless you are a very good swimmer, stay within the first two sand bars (there are three of them) where you can touch the bottom.
• Tthe turn of the tide makes swimming dangerous. It is best to inquire where and when swimming is safe

You have to act quickly, if an accident should happen while on the beach. In order to facilitate the aid of the rescue service, green signposts with a beach number (consisting of a letter and a number) have been placed at the base of the dunes along the coasts of northern Jutland. When you report an accident, start by stating what has happened and the letter and number of the sign closest to you. The alarm centre will know the exact location of each sign and will direct the rescue team to precisely the spot, where the accident has taken place.

Click here to download a brochure on safe swimming

Jellyfish
In certain weather conditions, stinging jellyfish wash up on the Danish coast. If you touch one, you will experience a stinging pain, because the jellyfish leaves small cysts of venom that burst after a while so that the venom comes into direct contact with the skin. Follow this advice: 

• Never dry the site of the sting with a towel - you will simply break more of the cysts 
• Instead, using long, light strokes, remove the cysts with an old-fashioned razor or something with a smooth, straight edge, e.g. a comb 
• Then cover the affected area with a pain-relieving cream