Our Mission Valley wedding hotel offers 30,000 sq. ft. of impressive reception and banquet space. The Rio Vista Grand Ballroom features 8,400 square feet of event space and can host 900 guests. Bring outdoor receptions to life in the Pavilion and the West Lawn. Our professional wedding planners in San Diego are dedicated to creating unforgettable celebrations. Enjoy exceptional event services, caterers, an award-winning chef and creative menu planning. Elegant dining spaces for every special event complete our Mission Valley wedding facilities.