You might want to get your camera out and head to Belgium Pier— just one of the landmarks located 0.5 mi (0.8 km) from central Blankenberge. It's also full of great chocolate shops and restaurants, so you can spend the afternoon having a wander.
Enjoy a round of golf in Blankenberge at Goolfy Blacklight Minigolf. Check out the shops and lively breweries in this walkable area.