Did you hear about caving at Ignite Seattle? Check out our beginner trips and information here.

August 2018: Our website is currently undergoing a MAJOR overhaul! Please see our Facebook Page (linked below) to find out about upcoming events! 

Welcome to the homepage of the Cascade Grotto!  Since 1951, the Cascade Grotto has been promoting recreation in, education about, and conservation of the caves of the Pacific Northwest and beyond.  We’re a local chapter of the National Speleological Society based in the Seattle area, and we’d love to share our interest in caving with you!

On our website you can:


All events that are available to the public are posted on our  Facebook Page
at facebook.com/cascadegrotto  under the “Events” tab.
(you do not have to be a Facebook user to access this public page)

We hope to see you underground!

Cascade Grotto is an all-volunteer, non-profit organization.