Marriott Marquis San Diego Marina in downtown San Diego spreads 1,360 rooms across two waterfront towers on West Harbor Drive, overlooking a private 456-slip marina adjacent to Seaport Village and the San Diego Convention Center. Five on-site restaurants span Baja-inspired fare at Agave Bar & Grill to grab-and-go items at Exchange Marketplace, with the marina-level dining drawing a walk-in crowd from the Embarcadero corridor that also feeds The Fish Market on the harbor. More than 271,000 square feet of meeting and event space includes ballrooms recognized by Smart Meetings in 2024 and 2025, supporting multi-thousand-attendee conventions with programmable lighting rigs and dedicated pre-function areas. Two outdoor resort pools, a children’s splash zone, and fire pits throughout the grounds create a campus-style recreation layer, supplemented by marina-based kayak, paddleboard, and jet-ski rentals. That waterfront convention-hotel model competes for Comic-Con and citywide conference business alongside neighboring properties like Embassy Suites by Hilton San Diego Bay Downtown on the same Harbor Drive stretch. Topgolf Swing Suite installations in the marina lounge add a virtual-golf entertainment venue to the property’s amenity mix, hosting private group bookings with bay views and a dedicated food-and-beverage menu.