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

Beginner’s Cascade Grotto trip to Lake Cave Photo by Mariana Tomas-Savage

Welcome to the website for 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 Washington area, and we’d love to share our interest in caving with you!

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

On our website you can:


Women’s Caving Trip, July 21 2018- Click here for more information and click here to register! 

Current and future events, open to the public, are posted on our  Facebook Page
(you do not have to be a Facebook user to access this public page)


We hope to see you underground!