WESTVIEW SAILING'S ONLINE RYA DAY SKIPPER SHOREBASED NAVIGATION COURSE - ROCKS, WRECKS, AND OBSTRUCTIONS
Today, in the present part of our shorebased navigation course, we will talk about rocks wrecks and obstructions. We will start with rocks, you will see how they look, what are the basic four types of rocks rocks (rock which is always above the water and never covers with tide, underwater rock never exposed at the level of chart datum but always has some water over it, rock which covers and uncovers height above chart datum, rock awash at chart datum) and what danger they may present for seamen.
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