Last I heard, their prices were $65/ guided dive, for a minimum of 2 dives (all dives are guided). That was last year though & may have changed since then. I believe the motels/ bunk houses they advertise is part of their operations (could be wrong on this). You can, of course stay elsewhere if you wish or need to. I had a friend who dove there a few months ago (never been there myself). He said it was cool to see all the old mining equipment & such, but is one of those "been there, done that, got the T-shirt" type dive sites. Once you've been through it, you've just about seen it all. Another thing to consider is to make sure you have adequate exposure protection, as the waters are quite cool at about 60 degrees or so.