Are there classes? And are there lanes to swim laps in?

A number of different kinds of classes

Yes

Yes, there are various classes and lanes for lap swimming. They post schedules for both. Check out the website.

There are 3 times during the day for lap swim. Check out the website for times. The classes are very targeted for specific fitness level.

Yes there's classes. But you can go early in the mornings to swim laps.

Lots of classes and yes there are lanes to swim laps