The YMCA is a great place to work. A typical day finds you greeting members as they enter the building, helping them check in, answering questions that they have about membership or programs, signing up new members and enrolling members and non-members in programs.
The best part about the Y is how caring most of the members are. When you're working the same shift, the regulars begin to expect you to be there and will stop to talk about life, making you feel like you're a part of the YMCA family.
The most difficult thing can be during the slow times, there isn't a lot of busy work to do so there will be times when it's boring. I've occasionally taken a book to read in between engaging members.