Just done the above at Plymouth Powerboat School (well recommended
Learnt a lot and the night Nav was a real blast, if anyone is undecided whether to do it or not I'd give it a big yes.
Flavour of Plymouth Sound at night, It's ******* Dark!
I had the console instruments turned down as far as they would go, and that floodlight on the A frame is only the Nav light! (but cast enough light to work by)