There is a gym with an indoor track on the western island, and an outdoor track near the NAPS and commissary on the mainland half of the base. The outdoor track is about 90% free, but 10% iced. Nobody has really been using it.
Unless you guys got mil ids with you, you'll need to use a picture of your orders and another photo id to get around.
Finally, check in tomorrow in multiple layers. The cold is slightly abrasive.