Underwater Geocaches

[+epd1]

Hello,

 

I'm looking to place my first underwater cache. I ordered a sturdy lock & lock from cachingcontainers.com (I know from experience they hold up quite well) and was wondering if the lock & locks are 100% waterproof. Second of all, I want to glue it to a brick but in my researching for 100% waterproof glue bonds I haven't found anything, so I'm thinking that this system might not really work.

 

Does anyone have an easy and cheap yet completely waterproof system for submerged caches?

[+briansnat]

I doubt a Lock n Lock would withstand constant immersion. Few containers will no matter how good they are. Not even an ammo box or Otter box is guaranteed to stay dry. Possibly a wide mouth Nalgene bottle is your best chance. I had one that spent 3 weeks under flood waters and was perfectly dry inside when the waters receded.

 

Even with the perfect container you still have to rely on people closing it properly, making sure there is nothing caught in the seal, etc. Perhaps multiple containers is the answer. The log inside a waterproof match container inside a wide mouth Nalgene bottle inside an ammo box.

 

Or another method that would reduce your worries about a waterproof container would be to sink something underwater containing the coordinates leading to a cache on dry ground. Perhaps a piece of metal or plastic with the coords etched into it. That gives searchers the underwater experience and reduces the danger of your cache being filled with water.

[+BAMBOOZLE]

The best I've seen is a bison suspended from inside a SS water bottle cap.... the bottle had lead in the bottom.....bottle had barnacles on it but it was dry inside.

[+briansnat]

The best I've seen is a bison suspended from inside a SS water bottle cap.... the bottle had lead in the bottom.....bottle had barnacles on it but it was dry inside.

 

That could work well. The stainless steel bottles I've seen have a ring built into the cap. I can see using a heavy weight, cinder block, etc., with a length of rope or wire attached to the ring on the bottle by a carabiner or some sort of rust proof clip. Use a bison or waterproof match container to hold the log for an additional layer of water resistance...and use "Write in the Rain" or "National Geographic Adventure Paper" for the log just in case.

[+MtnMutt-ProDuckShins]

My Impresshins Logs work in any type of Weather or Moisture level...

 

HVAC Metal Repair Aluminum Foil Tape, this stuff is expensive but no excuse of Log wet could not write on it.

 

Try your local Hardware store for HVAC, must be foil type as you will fold it onto itself, sticky side to sticky side.

Use a toothpick as the end of roll, then roll it up.

 

I've even made a few as Swag to throw in Caches from time to time.

 

Good luck on your Water Cache.

[+Ben0w]

A cache in one lake near me uses plastic stripes as a log book and encourages cachers to bring a pencil. You're supposed to log it underwater. Seems like it works.

Edited August 31, 2014 by Ben0w

[+Lieblweb]

Hello,

 

Does anyone have an easy and cheap yet completely waterproof system for submerged caches?

 

There is no such thing....

 

Depending on what type of 'underwater' cache you are hiding..... I personally wouldn't use a lock-n-lock. I haven't seen a lock-n-lock on dry land that was perfectly dry inside. In most cases...people can't close the lid properly!! (I'm not kidding)

 

My husband and I just replaced a cache in a river 2 weeks ago. The original container was similar to ours - and had lasted 3 years and thru 3 hurricanes/flooding. It eventually disappeared. Fast moving river water is a power thing. We used a metal water bottle. Inside the water bottle - We had an eye bolt that came out the bottom. The other end had a hook near the lid. Inside, we filled it with nuts/bolts (for weight) and a black liquid that dried solid..... (can't remember what that was, husband built it). We attached a small chain inside the container that attached the eye bolt on the main container and the lid together (we feared someone dropping the lid). Along this chain, was a bison tube attached with log inside. In order to close the water bottle...you have to get the chain & bison tube inside and close the lid.

 

In the river....we used another chain wrapped around a huge boulder. The container was attached to this chain via the eyebolt at the bottom.

 

We hid that cache 2 weeks ago and just went back today to find it again. We were happy & surprised there wasn't any water inside. I can't promise this will last a hurricane or any torrential fast moving water....but.... It's not hard to go back and replaced it.

 

So...Whatever you build.... ALWAYS assume your container or creation will eventually be abused by mother nature. Keep an eye on your creation and be ready for a re-design if things ever happen to it.

[TheStouffville5]

Any pic's?

Im looking to place a cahe in our lake when the ice comes off and its resonable to scout out the place i have in mind...

Thanks