Laminate the whole map (printing stores or Office Depot should have large sheet acetate) and write directly on it with semi-permanent (alcohol wipes will clean up) vis-a-vie marking pens (fine tip). Then put your map in the waterproof case so the backside of the map stays dry.
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You only live once; live well. Have no regrets when the end happens!
“The only thing necessary for the triumph of evil is for good men to do nothing.” (Sir Edmund Burke)
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