The Moran Mansion houses, the restaurant, spa, boutique, lounge, music room, library and museum, along with administrative and management offices, but does not feature any of the guest rooms. The hillside accommodations are approximately one-half mile from the mansion. Spread across eight acres of evergreen-covered hillside, Rosario Resort and Spa offers 116 guest rooms and suites, as well as a conference center equipped to delight groups from 20 to 400 with innumerable settings and attentive staff and fine dining at the Mansion Dining Room. All accommodations enjoy views of the pristine Cascade Bay or the lush evergreen forest of Orcas Island, and some rooms also feature such amenities as gas fireplaces, sunken Jacuzzi tubs, and private balconies.

An abundance of activities on Orcas Island and Puget Sound begin at the resorts Avanyu Spa with two pools, a fitness room, a sauna, Jacuzzi, and a host of pampering and rejuvenating spa treatments. Outdoors, Rosario's harbor features a full-service marina, moorings, whale watching charters, and kayak tour guides await. Featured in such publications as Town and Country, Northwest Travel, Orange Coast, Small Market Meetings, and Sunset Magazine, Rosario Resort and Spa garners praise from all corners, but most importantly, from its guests.