2026

San Diego mega

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PLEASE LOG YOUR WILL ATTEND

Signal's Island Goes MAS*H

Attention,

all geocachers, travel bug medics, map surgeons, and coordinate commandos!

Report for duty at Camp GEO M*A*S*H,

located in sunny San Diego,

where the ocean breeze always carries a hint of adventure

and even the ammo cans wear sunglasses.

We’re calling in the best of the best - that means

YOU!

Join the ranks for one unforgettable day of organized chaos,

creative caches, and side-splitting camaraderie!

Location

WELCOME to GEOMASH 2026
— Where Every Cache Is a Mission and Every Finder a Hero.

What to Expect

Opening & Closing Ceremonies

Island Games

Adventure Labs and GeoArt release

Meet Signal the Frog

Creative Cache Display –

Raffles, Prizes, and SWAG

Thanks to those who donated extra to Signal’s Island

You fund the operation, and everyone else follows doctor’s orders!

High Command Is Reviewing Your Application...

events

This is only the beginning.

More surprises are being prepared.

More missions are being planned.

Stay alert. Stay curious.

Camp GeoMAS*H Stations
where coordinates heal all wounds
and “just one more cache” is considered a treatment plan.

Below is your map of operations.

Some stations are clearly marked.

And a few are still hidden under a thick layer of fog of war (also known as “we’re not telling you yet”).

The Command Tent (HQ)

Check in, get your orders, and keep an eye on incoming coordinates.

The Swamp Photo Zone
Strike a pose, grab a prop, and document your finest field moments.
Uniform optional, but if your photo looks too serious, report back and try again.

Training Range
Games, challenges, and competitions designed to test your inner cache warrior.

Top Secret Coin Challenge
Stamp your passport, follow the trail, and earn a limited edition coin.
👉 Open to everyone.
👉 No passport required… unless you’re aiming for the prize.

Click to reveal more operational zones around Camp GeoM*A*S*H.

Event map

Camp GEO MASH at Liberty Station

Imagine a place where history meets adventure, where the salty ocean breeze mixes with the thrill of a treasure hunt. Welcome to Camp GEOMASH, set in the heart of Liberty Station, San Diego. This unique event transforms a historic naval base into a lively playground for geocaching enthusiasts and families. Whether you’re a seasoned cache-hunter or a curious newcomer, Camp GEOMASH offers an unforgettable experience surrounded by stunning harbor views and a vibrant community at

Jan 26

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