What is "vlieland"

Vlieland (; ) is a municipality and island in the northern Netherlands. The municipality of Vlieland has only one major town: Oost-Vlieland (West Frisian: East-Flylân). It is the second-least densely populated municipality in the Netherlands (after Schiermonnikoog).

Vlieland is one of the West Frisian Islands, lying in the Wadden Sea. It is the second island from the west in the chain, lying between Texel and Terschelling. The island was permanently separated from the mainland in St. Lucia's flood in 1287. Vlieland was named after the Vlie, the seaway between it and Terschelling that was the estuary of the river IJssel in medieval times.