The Days Inn Duncan (okla.) Is Located On U.s. Highway 81, Within Two Miles Of Simmons Convention Center And The Museum Of The Southwest. This Motel Is Also Just Five Miles From Halliburton Services Manufacturing Center And 35 Miles From Fort Sill And The Wichita Mountains Wildlife Refuge. Outdoor Enthusiasts Will Appreciate Golfing And Fishing Activities Also Nearby. The Days Inn Features An Outdoor Pool And Guestrooms That Open To Interior Corridors. Guestrooms Have Cable Televisions And Modem Lines.