From the Langeness south to Pellworm Island and the Nordstrand Peninsula, (all) are the remains of the much larger Island of Strand. It was literally (torn apart) into many smaller pieces by a great storm of tidal surges. Renamed the Halligen Islands, hundreds of the original pieces of Strandremain submerged.
Sylt, the most visited of the North Frisian Islands, is connected to the mainland by a long (drivable) embankment. In addition, an airport serves the area. Tours are easily arranged, and all of the North Frisian Islands are well served by regular ferry service.
Tourists and locals alike enjoy health spas, quiet walks along the sandy beaches, cycling, mudflats and sandbar tours and watersports of all description. The entire Frisian Island group has a rich ecosystem, and attracts many species of birds and fish.