Outdoor escape game by Qula — not a physical escape room, but a self-guided puzzle route through Zierikzee. Zierikzee is known for its rich history with more than 500 monuments. The City Trail takes players at their own pace through the city: on the smartphone they solve riddles and complete tasks that lead from place to place, including De Zuidhavenpoort, Vismarkt, the Blauwe Bolwerk and Dikke Toren. It's an independent treasure hunt without a guide, where the team with the most points wins.