Gallery 0 Results Reset All Close Spaans Lagoon in Aruba Michiel Oversteegen The Wadden Sea area has been at the centre of the Trilateral Wadden Sea Cooperation since 1982. Tobias Salathé The Wadden Sea is protected and manged as one ecological entity and there is a consistent approach to tourism operations within the area. Tobias Salathé The Wadden Sea extends over three countries, the Netherlands, Germany and Denmark and is one of the largest tourist destinations in Europe. Linking Tourism & Conservation (LT&C)