Sail along any coastline or sheltered waterway and you will encounter "ship killers" that lurk just below the surface. Make sure you can recognize the charted symbols that represent deadly rocks and wrecks to keep your sailboat and sailing crew safe and sound on the waters of the world! 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!