Mosta valley alread has a few cool caches so why not add one more so you can make a day of exploration out of it!
The valley is a popular spot for rock climbers, with loads of crags and routes for all skill levels. This cache is hidden in Jeff's Cave, which is also a climbing site.
Use the red dots to help you find your way up. The cache is somewhere in the cave :)
Bring your own pencil :)