If we join this Y can we attend the other ymcas in the western Carolina group, without additional charges?

Yes! The Corpening Memorial Y is part of the YMCA of Western North Carolina so when you are a member at 1, you can visit all 8 for no additional charge. You can find the list of locations below. Thank you and stay well! https://ymcawnc.org/locations

I don't know the answer to that question because I'm not in the YMCA.