Catalina Rocks! Guided Geology Excursion

Register Today!

Uncover the remarkable geologic history hidden within Catalina Island’s rugged landscape on this immersive field excursion. Our guide is Dr. Paul D. Asimow, Eleanor and John R. McMillan Professor of Geology and Geochemistry at Caltech.  

We will travel into Catalina’s interior to better understand the Island through the eyes of a world-renowned geologist. Along the way, Asimow will reveal how Catalina’s unique rock formations, tectonic history and dynamic geologic processes have shaped the features we see today. Drawing on decades of research across Earth and planetary sciences — from Catalina Island to Mars — he will share insights into the forces that continue to shape our planet and beyond. 

Whether you’re a geology enthusiast, lifelong learner, or simply curious about the natural history of Catalina Island, this excursion offers a rare opportunity to learn directly from one of the field’s leading scientists while experiencing the island’s extraordinary landscape firsthand. 

What to Bring

• A reusable water bottle
• Layered clothing, as temperatures may vary throughout the day

Important to Know

We will meet at the Trailhead Visitor Center for departure and will return to the Trailhead at the end of the excursion.

Ferry tickets are not included in the cost of this workshop and should be purchased early to ensure a seat is available. Same day ferry riders from Long Beach should reserve the 6 a.m. or 8:15 a.m. Catalina Express boat.

Participants should come prepared for being outside in the field, standing and walking. Sturdy, close-toed shoes and a re-fillable water bottle are required. Some walking on uneven terrain should be expected.