Grenspark Kalmthoutse Heide is a nature reserve located on both sides of the Belgian-Dutch border and covers approximately 60 km². It is characterized by the great diversity in the landscape. This enormous diversity is of great ecological and cultural-historical value. Wide, unspoilt landscapes of heathland, fens, dunes, forests, meadows and polders alternate here. Here rare plants and animals live in peace. It is therefore not surprising that Grenspark Kalmthoutse Heide is part of the Natura 2000 network that sustainably protects the most important nature areas throughout Europe.