I received a flyer from GWL in the mail with these coupon codes and thought I would pass them along.

"Additional 10% off our best available room rate when you book online."

Valid 10/17 - 11/1
Promo Code: HOWL

Valid 11/2 - 11/25
Promo Code: NOVEMBURR

Valid 12/6 - 12/18
Promo Code: SNOWLAND