Maxi Yacht Rolex Cup and Rolex Swan Cup. Costa Smeralda – the Emerald Coast – once again provides a stunning backdrop, with a variety of challenging conditions, for the Maxi Yacht Rolex Cup, a highlight of the Mediterranean yachting season. Each September a fleet of the world’s most elegant, powerful and spectacular yachts gather to battle for one of yachting’s most revered and celebrated competitions, with the coveted World Championship the focal point of the week.