There's treasure hidden in the city!
Luckily, it has a homing beacon attached.
Unluckily, your tracker was cobbled together from chewing gum and string, and can only tell you distance, not direction... and it takes 30 seconds to recharge after each ping.
You'll need to criss-cross the streets, using your tracker to triangulate in on the treasure - good luck!
Download the cartridge from here.
Note: this has only been tested on the Android "WhereYouGo" app - please get in touch if you run it on other platforms and run into issues.
Note 2: it turns out the final treasure location is only open during working hours (7am-7pm, Mon-Fri)- many apologies!
Note 3: I've moved it to the "other end", which is slightly less grubby - when you get there, you'll see! I'll update the info in the actual cartridge too.