The largest model in the 680™ Series, the McKinley® model offers up to seven seating options and the soothing relaxation of classic hydrotherapy combined with Sundance craftsmanship that lasts. The McKinley® spa is the largest model in the 680™ Series and offers up to seven spacious, ergonomic seating options with proprietary jets and air controls with massage options that allow for maximum relaxation. A simplified LED control panel, cup holders, multi-colored interior LED lighting and exterior lighting, beautifully designed cabinetry with tool-free access all enhance the elevated experience of the McKinley® spa.