Fishing at night

Now that I have a boat with a livewell, I'm looking into entering a simple
tournament. Just to put this into perspective, I'm not looking to win, I
just want to give it a try for the fun of it. I live in Florida and I've
noticed that many of the tourney's are at night (6pm-9pm or 9pm-2am). I've
fished until dusk before and then stopped as it just becomes difficult to
fish when you cannot see anything. I'm wondering how people fish at night.
Do you use spot lights to see the shore, tree limbs, surface vegetation,
etc? Do people usually fish off shore for the most part? Any insight you can
gie would be great!