Do you have to correct combination of Geocacher, Puzzle solver, and Tinkerer? Then this might be the cache for you. Everything you need to solve this cache is at the cache. This cache should only be attempted during daylight, it will be next to impossible without daylight.
Have you ever tried to put a round peg into a square? Then you should be able to do this cache with no problem.
Stakes and pegs and holes and locks oh my, what to do,