Sprogø is a small Danish island, located in the Great Belt, the strait that separates the main islands of Funen and Zealand. It is about halfway across the strait, 6.7 kilometres from the Zealand shore and 8 kilometres from the Funen shore.
Although sprog is modern Danish for speech, the island's name was recorded originally during the 12th century as Sproøe meaning scout's island, from the old Danish verb spro.Today, the island is crossed by part of the Great Belt Fixed Link, a series of roads, bridges, and tunnels; it is connected to Funen by a road and rail bridge, and to Zealand by both a road suspension bridge and twin rail tunnels. During the construction, the island was reconfigured drastically, with land reclamation increasing its area from 38 to 154 hectares.
Wikipedia https://en.wikipedia.org/wiki/Sprogø
Coordinates 55°20'2.658" N 10°58'14.874" E