Did you know that some rocks are hidden at all stages of the tide, but others may be lurking just beneath the surface? Waiting. Watching. Like a great white shark, ready to crunch your sailboat keel, propeller, or rudder. Know how to find these dangers on your nautical or electronic chart. Watch this sailing video to learn more!

Author, sailor, veteran search and rescue skipper, and pro maritime instructor Captain John shows you the nononsense 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 to get instant access to hundreds of his sailing articles, videos, FREE ebooks, and much more!