I'm traveling for business
Westhove Castle is 1.4 mi (2.2 km) from central Oostkapelle, why not stop by during your stay.
If museums are on your list of things to see in Oostkapelle, then you might want to head to Terra Maris. If you want to see more of the museums in Oostkapelle, Marie Tak van Poortvliet Museum Domburg isn't far either.
