Hi Flighty85,
Typically your hours during ground school will be 9-6 Mon to Fri. There might be a couple of other days that are different i.e. when you have to do your aircraft famil which is usually done either late at night or very early in the morning.
The swimming day is really cool. I dont think there will be any problems at all if you need to wear goggles during the wet drill. Most people find the day pretty easy. Dont stress.
If there is anything else you would like to know, just let me know!
Good luck
Rusty