The Hel Peninsula in Poland varies in width from 300 meters to over 3 kilometers and was formed entirely of sand, causing it to frequently become an island separated from the mainland during winter storms. Until the 17th century, the peninsula was actually a chain of islands that connected to form land only during the summer months and is now a popular tourist destination.
2. Hel Peninsula
The width of the peninsula varies from approximately 300
m, through 100 m in the most narrow part to over 3 km at
the tip.
Since the peninsula was formed entirely of sand it is
frequently turned into an island by winter storms.
Until the 17th century the peninsula was a chain of islands
that formed a strip of land only during the summer.