Ah, yes, it was showing me Montreal - so $25 x 10 hrs x 20 days = $2500/month - better. In fact, my suggestion was going to be to double their rates! If I was them, I would be encouraging/exploring more hours per guest - so charge $30 for one hour and then drop it in blocks of 2 or 4 hours.
I still don't like taking on the inventory risk.
I think they limit it to 10-12 hours per day in their schedule (as they limit the days to during the week). I'm just making an assumption about their occupancy rate - could be higher or lower.