WOT??? A mystery cache by Dingmiller that doesn't involve solving a puzzle? All you have to do to find this one is complete the Adventure Lab in the title and remember the numbers you found at each stage. Call them in sequence A B C D and E with the total being T.
The cache is hidden near an appropriate place for the Adventure at N 54 58.8*C W 002 00.6*T-B
"Ybt vg!" ur pevrq jvgu n ubyybj ynhtu.