La Prairie Summer Pop Up Experience Swiss luxury skincare House La Prairie’s exclusive spa experience at Gurney’s Montauk Resort & Seawater Spa. This summer, indulge in the art of rejuvenation with La Prairie’s exclusive ocean-view Treatment Suite. From July through August, experience two signature facials—each rooted in the brand’s pioneering cellular science. Designed to lift, firm, and illuminate, these bespoke treatments are a celebration of precision, indulgence, and radiant summer skin.