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Study some navigation too (i.e. piloting, dead reckoning, etc.) a quick overview should suffice. Definitely know the buoys. Just look it it up in the encyclopedia
Take the ladder well up to the third deck. Then go down the passage way past the quarterdeck. The head is the third hatch on the starboard side before you get to the galley.
I have been sailing most of my life, actually grew up in annapolis, anyway go to the library and check out a book called Chapman's Piloting. You will find more than you would ever want to know about boats and navigation.