That's a lot of cash to hide.

There's two problems, hiding the physical cash and then having the opportunity to enjoy it.

For hiding, I can't imagine the fear I'd have if I stuck it in the ground or in a hole in the wall, that would drive me nuts.

Do you get monthly or yearly bills for safety deposit boxes? Can you just pay a 1 time 50 year fee?

I think you can spend quite a bit on "normal" vacations where you are in a regular hotel but you can spend a lot of cash on the fun stuff.

Anonymous donations would be very nice. Be the mystery dude who drops $10,000 in the Salvation Army kettles.

How to be rich without being rich?