Sunglasses optional. Suspicion mandatory. Your mission in Skagway starts at Molly Walsh Park. In plain terms: a 2.5-hour team spy game on foot, played on your phones. Come for the city. Stay for the moment your most sensible teammate says yes to something bold, and the group brings it up for the rest of the day. Some missions need a sharp eye, some need a little nerve, and some need everyone talking at once. No puzzle skills required, just a sense of humour. Expect a mysterious twist along the way. About 2.5 hours and 4 stops over roughly 1.4 km. Your phone is your handler and your only witness. It is a game, not a guided tour, with nothing to download. And then there is that one teammate who is never living down what happened at the third stop. You will have the photos to prove it. Who it's for: friends, couples and families with teens; and private groups, from bachelor and hen nights to work teams and active over-55s. Note: book any day as a private team of 1 to 8. Bigger groups play as several private teams.