Hidden in the west side around Hell’s Kitchen is Manhattan Plaza Health Club. It’s a really large community gym and has tennis, swimming pool, and rock climbing options. I found out about this gym through class pass, and was able to climb for free! No one else was there when we were visiting so the staff even let us pick our own music. It was fun to do as an activity and nice that there weren’t as many people as vital for example, but it definitely is much smaller than vital. Monthly memberships start at $49 a month.