Koresand is a large sandbank in the Wadden Sea, the sandbank located southwest of Mandø is about 30 km2 large.

Koresand is a sandbank in the Danish part of the Wadden Sea, south west of the island of Mandø. In the summer it is possible to travel from Mandø to Koresand with a tractor-drawn wagon. On this tour it is possible to observe the seals in their natural surroundings.