Use the drop down box to select the amenity you wish to reserve.  For amenities which allow more than one user per time slot, click on the overall amenity category (i.e., Tennis, Fitness Center) to see the availability of all time slots for that amenity.
Time slots that are grayed out are not available for that amenity.  Time slots that are shaded with diagonal lines have already been reserved.
You are not required to be logged in to make a reservation, but if you are not logged in, the reservation will not show up on the website and you will have to contact the office if you need to cancel it.