Located on beautiful Orcas Island in Washington State's San Juan Islands, Rosario Resort & Spa has long been a favorite destination for travelers seeking relaxation and unparalleled beauty in the Pacific Northwest. Comfortable San Juan Islands vacation accommodations are provided along the waterfront near the resort's centerpiece, the historic Moran Mansion. The Mansion's hillside location above Rosario's Marina overlooks a stunning panorama of forested mountains and pristine shorelines. Built between 1906-1909 by Seattle mayor and shipbuilder Robert Moran, the Moran Mansion is listed on the National Historic Register and houses the resort's Mansion Dining Room, Moran Lounge, Bay Boutique, Moran Museum and The Spa.  (Guest rooms are not available in the mansion).