Mountain Casual - collared shirts, button down shirts, sweaters, sports jacket, khakis or slacks and walking shorts, well-kept denim is acceptable, shoes are required, bathing suits are not permissible on the terrace or within The Summit Lodge, caps & hats must be removed when dining. Temperatures on top of the mountain are known to be cooler than in the valley, a lightweight sweater or jacket is suggested for those dining outside, even on summer evenings.