The cost for hotel rooms with the discount code can be found under Things To Do and if you click on "View" that link will take you to where you can reserve your hotel room or hotel and flight package. There's a tiered list based on the amount of adults per room.
Send a message to me (Hope) or Ian and I will send a message to my wedding coordinator to get that scheduled.
The group discount code applies from February 20th to March 5th.