I say never, but who knows. This man whose ID is Lord British has one cache he has placed and two travel bugs he has dropped off and I think you have to be a special person or have a certain profession to get to them.

The cache is called Randbow Hydrothermal Vents. Evidentally as he was jaunting around in a Mir Russian Submersble he dropped this cache and one travel bug (TB31F1) off on the sea floor 2300 meters down and 3171 miles from my home coordinates.

The second travel bug is called the International Space Station Travel Bug and is located where it says it is. Hmm, maybe when my kids are old and they are visiting the International Space Station Museum it will be a part of the exhibit. 

Until then I can alway hope.