Cachin' the Bay 2025 Block Party
 

When: Saturday, June 28, 2025, 9:00 AM – 3:00 PM

Where: History Park, San Jose, CA 95112

Who: All geocachers – young, old, veterans, first-timers, families, locals, out-of-towners, and international cachers!

Why: We are taking the 25 year history aspect seriously -both globally and locally.
We will:

• have a recreation of the Original Stash GCF & its contents with audio narration of the creation with Dave Ulmer's voice
• have a beautiful recreation of Mingo
• have AL locations that show off the original icons used in the earliest days of Geocaching
• showcase how the Bay Area made major contributions to Geocaching including:

1. The Jasmer Challenge
2. The Fizzy Grid (GC11E8N DT 81)
3. First DeLorme Challenge (GCHANH)
4. Marky and Joani invent the Blinkie (GCMBV0)
5. Certitude created in the Bay Area
6. First use of What 3 Words by Kanchan https://coord.info/GC4N5VE
7. Apple and Google created iOS and Android OS devices allowing smart phones to geocache

• Locally there are several very loved caches that have gone away. Three of them, Red Rocket (GC3YWA6 431 Faves, 35mm Cannon (GC4YG14 237 Faves), and Nuts (GC41D4C 563 Faves) have been rescued from oblivion and the originals will be at our Block Party
• We are planning to have 20 gadget caches
• The adjacent disc golf course will host 5 cache types and overall 9 icon types can be found in the general area of the event. Dedicated "busy day" cachers can get up to 12 or 13 icon types using caches from the broader area
• And much more...

Registration & Store

This year, we are offering 4 registration options.

• Startup - FREE
• Venture Capitalist  
• Tech Mogul  Sold Out
• Strategic Partnership  Sold Out

Visit the Registration page for benefits of each tier. 

The Geocachers of the Bay Area welcomes you to Silicon Valley to help celebrate the 25th Anniversary of Geocaching

We are excited to invite geocachers from around the world to join us for a day of geocaching fun at the beautiful History Park, in the heart of Silicon Valley. This is the same wonderful location as our Cachin’ the Bay Mega-Event in 2023 event!

Celebrating 25 Years of Geocaching History at History Park San Jose
About the venue: History Park is located at the south end of Kelley Park at the corner of Senter Road and Phelan Avenue. Through 32 original and reproduction homes, businesses, and landmarks, History Park reveals Santa Clara Valley’s past. Complete with paved streets, running trolleys, and an old-fashioned ice cream shop, this 14-acre site offers the charm and ambiance of times gone by.

-May 3rd Update-

There are only 8 weeks till our Cachin’ the Bay 2025 Block Party!

Even after logging your Will Attend, if you have not yet registered, please do so. This will help us and will get you your name badge and door prize ticket as well as any other swag you want to purchase.

Have you visited the Cachin’ the Bay Store?

• Path tags
• T-shirts
• Limited Edition Event Coin - Less than 45 left.
• 2-PIECE California Block Party Coin - Still some in stock
• Beautiful Limited Edition Mogul Coin - only available at the Tech Mogul or  Strategic Partnership registration level - Still some in stock

Activities and Side Events

June 7

• GCB5KZ0 - Pizza & Prep: Let's Get Ready for Cachin' the Bay!
  If you’re available and interested in helping out, join us! We’ve got all sorts of easy jobs you can help with and eat pizza.

June 21

• GCB72D1 - Kelley Park CITO before CTB
  Help us clean up before the Block Party. We encourage you to bring your gloves, trash bucket ang grabber.
   
• GCB72DA - Post-CITO Lunch before CTB
  Join the GBA for lunch after our hard work CITOing Kelley Park.

June 25

• GCB6XTY - Pizza - 3 Days & Counting - CTB
  Three days and counting before our Cachin' the Bay 2025 Block Party. Meet cachers, drop trackables and enjoy pizza.

June 26

• GCB7944 - Edenvale Gardens Park CITO before CTB
  Feel good all day by joining us for a CITO park clean up. Afterwards, join us for a-job-well-done social.
   
• GCB794B - Sips and Smiles before CTB
  A post-CITO restorative. You and your family/cainine buddy/friends are welcome to come even if you didn't make it to the CITO.

June 27

• GCB5WQD - Pre-CTB 2025 Donut Event! 
  Krispy Kreme Donuts. What more needs to be said?
   
• OMESCAPE Activity   This will fill up fast. Sign up now!
  The GBA has teamed up with OMESCAPE Escape Rooms for a very special geocachers-only activity. The evening before Cachin' the Bay 2025, we have reserved 3 Escape Rooms. Bring your friends or join a group of new friends, and put your geo-senses to work solving a whole slew of fun, challenging, and mind-twisting puzzles. Are you up for the challenge?

June 28

• GCB7YPM - Gilroy CITO-6/28-Pre CTB
  An early park clean-up in Gilroy
   
• GCB7GMW - Santa Cruz CITO—6/28—Pre-CTB
  Our coastal CITO of the day
   
• GCB6YNJ - Pacheco Marsh CITO Pre-Cachin' The Bay
  An early morning CITO in the East Bay.
   
• GCB67F1- San Carlos CITO—6/28—Pre-Cachin' The Bay
  An early morning CITO on the Penninsula.
   
• GCB6XVA - After Cachin' the Bay Dust Settles-Event
  Join us for a post event cool down.

June 29

• GCAXGH4 - Cachin' The Bay 2025 Sunday Community Breakfast

And, there’s more to come!

• As at Cachin' the Bay 2023, we will have many clever gadget caches to amuse and challenge you. 
• Passport Activity
• Registration for Fizzymagic's smash hit puzzle session! 
• Birds-of-a-Feather Sessions
• Box Lunches for pre-order
• Even More Events

Stay tuned...

Interested in Volunteering?

The Cachin' the Bay Block Party can't happen without a slew of generous volunteers!
We have lots of 1 hour and 2 hour volunteer opportunities available, including jobs for people with limited mobility. 
Check out the Volunteer Positions here.