1. GC1BE91

A unique geocache that is on the move. At its closest, this geocache is a mere 250 miles away from you. It is traveling at 17,000 MPH. How can this be possible?

Published with special permission from Groundspeak in 2008, there is a small locker in the Russian section of the International Space Station which has been designated as a geocache by anyone with the special talents required to reach it. In fact, only one astronaut has ever logged the geocache, but many trackables have visited.

2. GC95P88

This cache is deep, deep, deep under the water. 10,925 meters below the surface, in fact. Captain Nemo himself would be proud to find this one. Placed with special permission from Groundspeak in 2021, the Challenger Deep of the Marianas Trench at -10,925m earthcache has NEVER been found. Who will get the FTF?

The cache was placed during a deep sea expedition with a special submarine. They hiders are hopeful that there will be future expeditions that that will return to the trench and use the geocache as a target.

3. GC6RTZA

Placed in 2016 and still waiting for a legitimate find, Dún Briste is a traditional at the top of a famous sea stack in County Mayo, Ireland. If you check out the cache page, you’ll see the owner has linked a video as proof that it can be scaled. Was 2016 the last time someone climbed the summit?

4. GC2BX66

The fourth one on our list is actually at ground level. Earth’s Orientation – South Pole is an Earthcache at the geographic South Pole. If you make it there, you’ll have to explain what’s up with your compass (hint: the magnetic South Pole is somewhere else.) This cache was placed in 2010 and has about eight finds.

Runner Up: GCY72P

It really should be on this list. But, this is NoVAGO and we know how determined some of us are. It is especially hard to resist this 5/5 when it is so close to Northern Virginia.

Placed in 2006 by Vinny & Sue, Psycho Urban Cache #13 – Impossible! Give Up Now! in Shepherdstown, WV sits at the top of a pylon in the middle of the Potomac River.