One of my birthday presents was a Night Owl generation one night vision scope.
These are not expensive and work very well. Standing on the breakwater at City
island I could easily see moorings, and shore detail on hart island. A passing
boat was virtually invisible to the naked eye, but with the Night Owl I could
see it very well, even the two people on board.
I've used a very expensive Gen 3 Newcon and of course it's far superior. But
for the type of sailing most of us do this is a very useful little gadget and
loads of fun. My model is water resistant. Check one out! Typically under $250.

RB