We specialize in off-grid systems for cruising boats. Our team is made up entirely of full time off-grid liveaboards and cruisers based in Boot Key Harbor in Marathon, FL. We rely day in and day out on the same systems we sell and install; from high-efficiency solar arrays, to lithium battery technology, to watermakers. This gives our team unique insight into the needs of self-sufficient cruising boats, their crews, and the equipment they rely on. Sea Tek marine is about independence on the water; for boaters, by boaters.