Under a Rock Geocache

Introduction: Under a Rock Geocache

About: I am a single dad of a 11th grade son! I enjoy this website so much, so many things to learn and try to create. I at first thought it was stealing ideas, but being able to put your own special twist is even m…

An adaptation of a couple of different reuses .Cannot begin to list how many people have shown pics/instructables on using bottle caps/lids as containers. Thank goodness it isn't copyrighted! My emphasis is on using in a Geocache.

Step 1: Tools/Materials

This is a screenshot (sorry, I was quickly corrected that this is a picture, not a screenshot, wow...) of the items I used, it can vary by your tools available.

For instance, cutting bottle and pipe I used a pvc pipe cutter, you could also use hacksaw.

I prefer the larger bottles or soda bottles due to the actual top size.

Step 2: Another Set of Screen Shots (I Mean Picture, Oops) of the Tools/materials

You will need 2 matching size bottles, and pvc pipe is optional (but has to be 3/4" thin wall if you do use it)

Step 3: Prepping the Container

1st decide what type of bottle lid to use. I like the larger bottles, if you compare to the smaller 16oz bottles, the lids are too small.

Step 4: Extra Layer, Use As Added Strengthening, or Length

Measure, mark, cut.

Insert inside of bottle lid, determine length you need.

You can see the one camouflaged, I used a longer piece of pipe, and wrapped with camo tape and paint.

Step 5: Glue Pipe and Bottle Caps

I went along both lids where cut, and smoothed over so they would make tight connection. For quick seal, superglue is ok. For water tight, use a silicone sealant.

Step 6: The Hardest Part, Prepping the Rock

Find a large stone, rock, boulder.
Start to chisel until desired depth.

I saw this idea, larger scale, with like a 4" pvc threaded pipe with lid was mounted under a rock. This is scaled down. Hardest part is chiseling out the hole, unless you have something like a hammer drill.


I'm almost done, little deeper to chisel. Will use some kind of epoxy to hold container in hole.

Step 7: Placement

Roll up your geocache log, place in container. You will have to follow Geocaching placement steps from the website. Find your ground zero to place it and let others enjoy the hunt!

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    2 years ago

    Just a thought. Look up how to make rocks using tufa or hypertufa. It's basically a mixture of cement, sand, and a lightweight material like peat moss, vermiculite, or perlite. You can create pretty much any kind of look for the rock. The cavity for holding the cache can be ny size you want.


    6 years ago on Introduction

    Wouldn't it just tick you off if you spent all the time to make something like this, which chiseling the hole took forever, and find out that some yahoo decided to steal it or trash it? The location I had this placed was on top of this huge rock hill, prob 3-4 stories tall, with a road/trail up to the top, and its gone. Someone probably threw it down the hill with the other 100+ rocks! I stood there forever looking down the hill hoping to spot the one rock, hopefully upside down, with a little green cap! Well, back to stage one, finding a new rock!


    7 years ago on Introduction

    OOOO...(insert evil grin)

    Nice hide.. Will have to make one.

    I have GC274C which has been out since Nov '01 and my lady friend has GC2V9NC in place since Apr '11. Both take ya to some scenic spots.

    Happy caching FN64 aka RubiconJW


    7 years ago on Introduction

    Isn't geocashing the best! Although the sad thing is that there aren't many around me. Guess I got to go leave some around!


    Reply 7 years ago

    Can't believe you wouldn't have any around you, they are everywhere! Yeah, get busy hiding some, I think that is my new hobby, I have so many ideas


    7 years ago

    Just FYI, a screenshot is a digital screen capture of a computer screen. You're using that term for photographs.

    Nice instructable!