This event is in the past.It took place on July 18, 2026 at Santa Cruz Museum of Natural History.


Seabright, Santa Cruz
🪨Bring as many samples as you want
⏱️Crowds may limit IDs to 3 rocks each
🐚Explore the museum's touchable tide pool exhibit
Bring your backyard treasures to UCSC geologists who'll solve the mystery: is it a geode, a fossil, or just a really cool rock? Drop in anytime for free IDs.
Rock identification workshop
Hands-on geology
UC Santa Cruz experts
Bring your own specimens
Book Tickets


Seabright, Santa Cruz
🪨Bring as many samples as you want
⏱️Crowds may limit IDs to 3 rocks each
🐚Explore the museum's touchable tide pool exhibit
Bring your backyard treasures to UCSC geologists who'll solve the mystery: is it a geode, a fossil, or just a really cool rock? Drop in anytime for free IDs.
Rock identification workshop
Hands-on geology
UC Santa Cruz experts
Bring your own specimens