While one could argue that any evening spent navigating the never-ending maze of coffee shops and boutique sneaker stores is no less than a scavenger hunt, a group will take the idea a step further this weekend, setting out after dark for a nocturnal treasure hunt. City-based community DaBombaes and Bengaluru-based wellness collective Sisters-in-Sweat are calling for eagle-eyed Mumbaikars to put their thinking caps on.

The certificate features a 1764 map of the region of present day  Mumbai and it suburbs, drawn by JN Bellin