Established in 1950, San Diego Marine Exchange in Point Loma operates a full-service chandlery on Shelter Island Drive with over 15,000 marine parts, hardware, and maintenance products in stock. Engine parts, running gear, electrical components, and pump assemblies supply the sailboats, sportfishing vessels, and cruising yachts that stage from the Shelter Island basin — including the charter fleet at Sail San Diego. The company also operates Downwind Marine, established in 1976, and Sailing Supply, established in 1972, forming a three-store chandlery group that covers powerboat maintenance, bluewater cruising outfitting, and competitive sailboat rigging. Retail and wholesale channels serve both individual boat owners and commercial marine operations, stocking anchoring and docking gear, deck hardware, ventilation materials, and cleaning products. The anti-fouling product wall stocks bottom paints, zinc anodes, and barrier coats designed to work on the maintenance cycles that Dockside Divers sets for underwater hull cleaning across the Shelter Island marina basin. Rigging-shop services at the Sailing Supply location build custom halyards, lifelines, and standing rigging to spec, handling the most complex outfitting work for offshore passage preparation.