Silver Rain Spa at the Ritz Carlton Grand Cayman. Silver Rain, a La Prairie Spa, celebrates the energy of healing waters in all its forms. The entrance of the spa gives the feeling of walking into a glacier. My favorite part of this spa is the relaxation area. It’s an all white room with plush white couches. White drapes segment the room and form private coves. You may not see another soul the whole time your at the spa.