Nobody in San Juan suspects the tourists taking selfies. That is exactly what HQ is counting on. In plain terms: a 2.5-hour team spy game on foot, played on your phones. The mission is the excuse. The real game is figuring out which of your teammates has been lying since the first stop. 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. There may or may not be a double agent on your team. No app, no guide, no headset. About 2.5 hours and 2.4 km, with 4 stops that stay secret until you earn them. Somewhere, HQ is filing your mission report under 'surprisingly competent'. You take home 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. Book a private game for 1 to 8 players on a date you choose; a team of one works too. Bigger groups play as several private teams.