Has anyone tried doing either of the above? We tried geocaching and found it loads of fun - I used to love treasure hunts as a child and it is basically a grown up version using your smartphone as a GPS device to find hidden 'caches' that are all over the place (There's one in the trolley park of our local Tesco's, but they are usually in outdoor places like parks and nature reserves). Munzee is very similar but uses those QR square barcodes, and as you find them you scan them with the app and collect points. Ive just been out for a good 2 hours at a local lake and we found 5 - we had a right giggle and walked for around 2 hours so had some exercise to boot! I just wondered if anyone else had given it a go.