When I started geocaching, I learned a little about Letterboxing.
It is similar to geocaching but traditionally doesn't use a GPS.
Replace the cache where you found it. Keep it well hidden from
casual passers-by.
This is placed about 30 feet off a well maintained trail. There
is even a nice bench nearby for you to sit on while you trade
imprints. Please try not to find it or hide it while others are
passing by.