If you sail or cruise in US waters or near the coast, you'll need to identify lights used by tugs and the vessels being towed. Use this "Quick Guide" to help you master this vital coastal sailing navigation skill. Captain John with 25+ years of experience shows you the no-nonsense cruising skills you need for safer sailing worldwide. Visit his website at https://www.skippertips.com and sign up for his highly popular Sailing Tip of the Week. Discover how you can gain instant access to hundreds of sailing articles, videos, FREE e-Books and much more!