hehehehe.... i love it - Heres the daddy of all caches for you - as long as you can swim.
OK, heres to go.
5 or 6 five gallon drums with lids that are rated air tight.
vacuum sealed bags. (where you stuff the stuff in them, use the vacuum tp pull out all the air types).
Get all you want to stash for a rainy day
and place it into the bags - each bag gets an equal share of what you need to stash ie not all your eggs
in one basket.
stuff in the bags? great. Now get your drums, and add your stuff to them.
Now, with water proof industrial adhesive, glue the lids tight shut. Liberal use of the glue their lad...thats right.
good so far...
Now, you need some water proof rope... see where this is going?
make harnesses for all your barrels, making sure there is plenty of rope for each one, and then get some weights.
Add the weights to the drum, fill your bath, and see if it is enough to sink or float.
So its sinking, great. Now load your car up.
Your looking for an area of water far from the maddening crowd really (or near to home but do this at night
Now, swimming time.
With your buddy (ies) get into the water, find a nice deep ish spot you can with a mask and fins dive down to the bottom. Now, go get your first
Take it to the bottom, weigh it down till its stays put, then rise back up to get another one.
Do this three times in a wide area, and you my friend have a vermin proof, thief proof cache.
No bears gonna dig, no robbers gonna swim, no fish is going to eat, nothing is going to touch your cache.
To retrive your cache, you and a buddy dive down, and you cut a few weights off and slow float it to the surface.
Dry your self off, get into your warm kit, and off you roll.