swimming lesson

Dad had met a women who gives swimming lessons at the senior center. It took some doing, but she finally had her first lesson today. They say she did really well, and seemed to have fun.
I was going to try a spinning class at the Y this evening, but when I called to find out how early I need to show up, and I was told you have to be there at least a half hour early to take a number to reserve a bike. So if I go, I will have 30-60 minutes to kill. Not sure if I can make that fly if I wanted to join. I would either have to convince Mayra to stay in the kidzone extra time, or have a sitter for twice as long as I would like. If I let Mayra get in their pool, she will not want to get out while I take a class.
Maybe I should just save my three day pass for a different week.