The married housing is in Bayside, located approximately 2.5 miles from the park. There are regular busses (run by CP) that will take you back and forth. But be warned: you cannot walk or ride bicycles on the causeway that connects the two places. So really, driving, riding the bus, or getting a ride with someone are your only options. You should also know that parking at Bayside is a problem. Its lot is very small, and it's reserved. The parking lot across the street at Commons fills up pretty fast in the evenings, so you may end up having to cross two streets to get to and from your car. However, the guard will generally let you drive in to load or unload stuff (luggage, groceries, etc.)
As for the apartment itself, I will describe mine for you--but, of course, yours might be slightly different. It's a fairly nice one bedroom, one bathroom apartment, fully furnished (70's decor). There's a full kitchen with an oven, stove, and refrigerator. There's a full bed, a dining table (three chairs), a couch (that makes into a bed), two chairs, two large dressers, a coffee table, an end table, a lamp, and two lamp/table things. There's also quite a bit of closet space.
There is no desk, so you may have to get creative if you're bringing your computer (I'm using one of the dressers).
There is one phone (rotary), curtains, and a shower curtain. They will provide sheets and towels, but they're not the finest quality, so you might want to bring your own anyway. Baside does have a laundry room on the second floor (there are three floors) of each building, with two washers and two dryers ($0.75 / $0.50). Odds of using them on Sundays, though, are pretty slim. :o)
There's also a small convenience store located in one of the two Bayside buildings, but I haven't actually gotten around to checking it out yet. :P
I hope this helps.