Tucked along the northeast side of Quivira Basin at 1677 Quivira Rd, 92109, Seaforth Marina is a full-service marina on Mission Bay offering slip accommodations for vessels up to 35 feet. The marina sits between Hyatt Regency Marina and Marina Village Marina, positioned just minutes from the Mission Bay Channel and roughly ten minutes from open ocean access. Slip options follow a two-up configuration — two boats sharing a single slip — with most berths sized at 35 feet and smaller inventories of 30-foot and 25-foot slots. Boaters must carry a minimum of $500,000 in liability insurance naming Seaforth Marina as additionally insured, and vessels older than 20 years require a survey completed within the prior 24 months. Anglers heading out for a morning charter can stock up on bait and supplies at the nearby Seaforth Sportfishing dock before launching toward the kelp beds or Coronado Islands, and the location's proximity to The Fishery makes it convenient for slip holders to pick up fresh-catch seafood on the way home. The basin is home to several complementary marine businesses, including Seaforth Sportfishing for half-day and multi-day charter trips, OEX Dive & Kayak Shop, and the Sportsmen Seafood Restaurant & Market at the west end of the marina. Seaforth Marina accepts credit and debit cards, provides wheelchair-accessible entrances and parking, and operates Monday through Saturday from 8 AM to 3 PM, closed Sundays. Mission Bay Park's 4,600 acres of aquatic playground surround the marina, giving members direct access to 27 miles of meandering shoreline for cruising, fishing, and water sports. Slip holders who enjoy unwinding after a day on the water often make their way to Waterbar for waterfront cocktails and coastal views. Whether storing a sailboat long-term or docking between weekend trips, Seaforth remains one of the most accessible marinas on the bay for both liveaboard cruisers and casual boaters.