



Chalkida | Evripos Straits
Where logic fails and nature plays tricks, the Evripos Strait has puzzled minds for centuries. Waters that change direction without warning, currents that defy explanation- this is not just a place, it’s a phenomenon waiting to be decoded.
What you'll do
Where logic bends and waters defy direction, the Evripos Strait sets the stage for a quest that keeps teams thinking- and moving.
In teams of 4- 6, armed with your smartphone or Summit tablets, you’ll follow a digital map across Chalkida’s iconic spots- from the old bridge to hidden corners of the city. Each pin unlocks a challenge: riddles, location-based questions, and interactive team missions that connect you with the culture, history, and the mystery of the strait.
Solve fast. Think together. Adapt constantly.
Because just like the Evripos currents, the game keeps shifting- and only teams that collaborate and stay sharp will rise on the leaderboard.




























