For a typical day, you'd want to be at breakfast at 7am. You don't want to miss breakfast.

So I'd get up about 6:30am. Most people tended to shower at night before bed since you're gross from working out all day. And no use showering in the morning since all you're doing it setting out to get gross.
There's an optional class at 6am called Yogalates... combination of Yoga and Pilates or, straight up Yoga on Fridays. I did that a couple of days, but after that sleep won out. It was a nice stretch in the morning, but it was hard to make yourself get up for it.
After breakfast, you leave for the hike. They say they hike every day in every weather, except for lightening. That being said, you have the option to stay back and work out in the gym if you're not up to hiking. On days that many people stay back due to weather, they actually have trainers come in and do classes for that time period, so it's not like it's the easy way out. That's about 2.5 hours - either hiking or class.
After the hike, there is one class which varies depending on the "group" you're in, then lunch. After lunch, your schedule depends on where you are in your stay. During your first week, you have a lecture after lunch. If you're staying for multiple weeks, during your second week onward, you do a gym class instead of the lecture. These tended to be "easier/fun" things instead of the regular classes - things such as kickball, bike riding, etc.
After the afternoon lecture or gym class, you have 3 classes in a row. Each day you have one class in the gym, one class in the aerobics room, and one pool class. If you'd rather not do pool for whatever reason, you have the option of repeating your gym class again.
After the 3 afternoon classes is dinner followed by another lecture during your first week. By that time, it's about 7:30pm and you're ready to shower and get to bed.
It's pretty hardcore.
As for tools to help you after you get home, they also do departing guest lectures that you attend during your last week. If you only go for one week, then you do the arriving and departing lectures during that same week. the departing lectures are things like planning strategies, etc. They also have cookbooks for purchase that contain just about all the recipes of the meals you've been served.
I didn't see any of the former contestants while I was there.

I was really hoping I would since I was there for 4 weeks AND I was there right after New Year's (they've had visits then before) AND I was there when the new season started (thought it would be good for a promo). But, alas, my perfect storm of timing was useless and no one visited while I was there.