36,000 nautical miles. On boats since the age of ten. Marine advisory, ocean passages, and vessel care built on everything the Pacific demands of you.
Salt, UV, diesel, bird acid, oxidation — your hull, topsides, metal and teak absorb it constantly. Harbor Guard's proprietary CorLock polymer bonds at the molecular level. One coat. 9H hardness. Five-year protection or more, with none of the fragility of ceramic. We carry it, apply it, and stand behind it.
A coastal run, an offshore passage, water you've never navigated. We've done it. 36,000 nautical miles and counting — every condition the Pacific puts up, from San Diego to wherever the trip ends. We bring the boat home on time and without drama.
Talk to us about your delivery →Buying a vessel, managing a refit, or developing the skills to take your boat offshore — the decisions are easier when you have an experienced marine advisor who has no stake in the outcome other than getting it right for you.
Talk to us →Evaluating a vessel before you buy, or trying to understand what you own? We give you a straight read on condition, value, and what the boat will realistically cost to operate and maintain.
Refits go sideways without experienced oversight. We coordinate the work, hold contractors accountable, manage scope, and keep the project on time and on budget.
We teach on the water, in real conditions, on real boats. Whether you're building offshore skills, working toward your license, or learning new water, we train the way the ocean actually behaves.
What is Harbor Guard CorLock and where can I get it in San Diego?
Harbor Guard CorLock is a polymer marine coating that bonds at the molecular level — 9H hardness, 5+ years of protection, single coat. It protects gelcoat, paint, topsides, metal, teak, and stainless against salt, UV, oxidation, diesel, and bird acid. Ellsworth Marine Inc. is the authorized San Diego distributor and applicator. Call 619-884-4800 or visit us at Shelter Island.
How is Harbor Guard different from ceramic coating?
Ceramic coatings are hard but brittle — a single impact or hull flex can crack them. Harbor Guard CorLock achieves 9H hardness while staying flexible, which matters on fiberglass hulls that work in open water. It also covers a broader range of surfaces: gelcoat, metal, teak, and stainless, not just paint.
Do you deliver boats to Baja California?
Yes. Baja runs are a core part of what we do. We've made the passage many times and know the stops, anchorages, weather windows, and the fuel situation down the peninsula. If you need a boat moved from San Diego to Cabo or anywhere between, reach out.
What does marine advisory or vessel consultation involve?
It depends on what you need. Pre-purchase, we assess the vessel, review sea trial findings, and give you an honest picture of condition and value before you commit. For owners, we advise on refit scope and cost, vendor selection, and operational decisions. We can also provide on-water training for owners building offshore skills or working toward a license.
A new boat line. More when it's ready.