Receive €5 discount per child at Fort Vertier

Imagine this: you’re looking for an active day out with the whole family. Your teenager wants to climb among the treetops, but your youngest, who’s 6, thinks that’s just a little too scary. Or maybe you’d like to do two activities—first climbing, then running, searching, and scoring in Fort Vertier.

Grab the combo deal with Klimbos Harderwijk and get a €5 discount on the adjacent Fort Vertier 3D maze with every climbing ticket. Two completely different outings, all in one location. Adventure guaranteed!

Fort Vertier is an interactive Roman-style 3D maze, specially designed for children ages 5 through 12. It’s not your typical playground equipment—it’s a real adventure featuring elevation changes, stairs, bridges, and towers. Children go on a scavenger hunt with a digital wristband and play games such as:
🔍 Search Game
🛡 Tower Game
🎲 Board Game
Every round is different—who will find the fastest route and score the most points? Fort Vertier is active, safe, and 100% outdoors. While the kids go on a discovery adventure, parents can enjoy a cup of coffee on the terrace.

Klimbos Harderwijk is suitable for anyone 1.20 meters or taller, so for adventurous kids, teens, and adults. Fort Vertier is designed specifically for children ages 5 through 12. Sometimes kids find the climbing forest just a little too thrilling, or they’re still too small to climb. In that case, Fort Vertier is the perfect alternative or a fun addition. It’s ideal if you’re coming with a mixed group or just want a day full of variety!

1. Book your climbing adventure through this website.
2. In step 2 of your booking, select "Add on" and choose Fort Vertier child admission
3. After booking, you’ll receive a separate email with a personal voucher for Fort Vertier
4. Go to the Fort Vertier website, choose a date and time, and enter your code.

You decide when to visit Fort Vertier: right after climbing or on another day. The voucher is valid for 2 years!