A young gray seal named Witje is now recovering at the World Heritage Center (WEC), a new seal rescue facility that officially opened in Lauwersoog, in the north of the Netherlands, in 2024. This facility is situated near the Wadden Sea, which is recognized as a UNESCO World Heritage Site. Witje, who is four months old, was brought to the center after being found with a swollen flipper and a damaged eye. The WEC replaces the older Pieterburen Seal Center, which began operations in 1971. It is located closer to the sea, making it more suitable for providing a natural habitat for recovering seals. According to recent research by Wageningen University, around 24,000 seals currently inhabit the Wadden Sea. Each year, approximately 200 injured or orphaned seals are treated at the WEC. These animals are usually harmed by marine debris, become separated from their mothers, or are struck by vessels.

At the WEC, seals such as Witje are rehabilitated in tanks filled with seawater rather than tap water. Curator Sander van Dijk stated that seawater, with its natural salt content, promotes faster wound healing and supports the seals’ fur health. The center includes 12 intensive-care units designed to provide a tranquil environment for seriously injured animals. These enclosures prevent swimming to encourage rest and are cleaned regularly to avert infection. The new facility cost over 40 million euros and was financed through public and private support. In addition to rehabilitation, the WEC functions as an educational center, offering visitors insights into the ecological significance of the Wadden Sea. The center aims to increase awareness and foster conservation efforts through interactive learning and immersive exhibits.