Castle Harbor Sailing & Boating School

Castle Harbor has been teaching people to sail and handle powerboats on Biscayne Bay since 1956, which makes it one of the longest running boating schools in South Florida. The school operates out of Matheson Hammock Park and Marina, a spot the City of Coral Gables lists among its own attractions, putting Castle Harbor’s classroom essentially on the water at the edge of the city.

Owner Gary Fretz runs the school alongside his broader work in the yachting industry, and that dual background, hands on sailing instruction paired with deep experience in the yacht business, shows up in how Castle Harbor structures its programs. The sailing division uses the American Sailing Association certification system, a widely recognized standard that takes students from complete beginners through more advanced levels of certification, giving graduates credentials that are recognized well beyond South Florida if they go on to charter or own a boat elsewhere.

The powerboat division runs on a separate but complementary track, using the US Powerboating educational system and modern outboard boats to teach practical, hands on operation. For a lot of students, powerboat handling feels more intuitive at first than sailing, but Castle Harbor’s structured approach still covers the navigation, safety, and boat handling fundamentals that separate a confident boater from someone who simply knows how to start the engine.

Beyond individual lessons, Castle Harbor has built a business around group and corporate programs as well. Companies looking for a team building activity that gets people out of a conference room can book regatta style sailing events, which tend to force communication and cooperation in ways that are hard to replicate in a typical office exercise. The school also runs youth summer camps that introduce kids to both sailing and powerboating, giving South Florida families with young kids a way to get them comfortable on the water early, in a region where boat ownership and access to the bay are simply part of everyday life for a lot of residents.

Given Coral Gables’ location along Biscayne Bay, and the strong boating culture that comes with it, a school with seven decades of instructional history carries real weight. Castle Harbor is not a seasonal pop up or a single instructor operating out of a rented slip. It is an established program with a specific certification pathway, a founder still actively involved in the business, and a location inside one of the city’s signature waterfront parks. Anyone interested in learning to sail, picking up powerboat skills, or booking a corporate outing on the water should reach out directly for current pricing and available class times.