This has to be the weirdest one so far, although I can understand why. It’s about half way up the Koko Head crater walk and the person probably left it there for one of two reasons. Firstly, they were so tired and oxygen starved that they just forgot it, or secondly, it was an extra layer they didn’t need and couldn’t be bothered carrying it any further.

It is a tough walk, although totally worth it on a clear day. Views across Oahu and out to Molokai make it worth every step.