Our reaction when we heard you want to become a member!

We’re thrilled that you’re interested in becoming a member of the Cascade Grotto!


Membership is only $20/year per individual (plus only $5 for each additional household member) annually!

Member Benefits include:
– Subscription to our newsletter, Cascade Caver.
– Members-only access to our Facebook Group and Email list.
– Invites to exclusive, members-only caving trips!
– Learn about PNW caves and caving news!
– Get instant access to our online digital library including past newsletters and more!

Pay with any credit card via the secure PayPal interface below!
(You do not need a PayPal account to use this feature!) 


  1. Please complete a Membership Application (alternatively, you can print it out and mail it to us using the address below).
  2. Select the appropriate membership type below. (Additional household/family members are $5 per person. If you have more than two household members, choose the $30 option).
  3. Click the Buy Now button. This will re-direct you to the PayPal site.
  4. Click “Pay by Credit Card” and follow the prompts! You should receive a confirmation message. As soon as our Admins can address it, you’ll be added to the email list and membership rolls.
  5. Request membership in the Closed “Cascade Grotto” Facebook group if you’d like!
  6. Congratulate yourself on supporting the Cascade Grotto!

Select Type of Membership

Alternatively, you may send a check or money order: 

Cascade Grotto
PO BOX 66623
(current as of 6/2018)