Pellworm (North Frisian Polweerm; Mooring North Frisian: Pälweerm; ) and the peninsula of Nordstrand (Mooring: Nordströön) are the remains of the submerged island of Strand. The main town of this sunken island was Rungholt, thought to be the largest town in the surrounding area, but it was totally destroyed and submerged by a storm in 1362, 272 years before another storm destroyed Strand itself. Nordstrand has an area of 49 km², Pellworm 37 km².
Pellworm (North Frisian Polweerm; Mooring North Frisian: Pälweerm; ) and the peninsula of Nordstrand (Mooring: Nordströön) are the remains of the submerged island of Strand The main town of this sunken island was Rungholt, thought to be the largest town in the surrounding area, but it was totally destroyed and submerged by a storm in 1362, 272 years before another storm destroyed Strand itself. Nordstrand has an area of 49 km², Pellworm 37 km².