Just an FYI - We allow camping at GBM in the pit area near where you will be taking the course. We have permanent washrooms and showers and you can bring/run you own generator (sorry- no electric hookups). The Piney is an awesome facility, but if your not able to use most of what it offers (since you will be in riding school for most of the day) it make more sense to stay at GBM and save some money. You should also check the Pinery alcohol restrictions since I know they have them on certain weekends. Also at night GBM s only a 5 minute $10 cab ride into/from town (at least 20 minutes from the Pinery). If a hotel is your preference the Bluewater is a good one at a great rate.
Wicked! I didn't know this was an option. Will probably stay at GBM if my friends don't confirm that they're camping that weekend. None of them are taking the course but might be camping near by.