The gators only come out when it's warm, but don't go during summer because the swamps are probably hell on earth in that season. Pick a warm spring day, maybe in the afternoon, and wear sunscreen (we got sunburnt). Note that there are parts where the boat speeds up so it gets really windy, and during cold days you must bring a proper coat or you'll freeze.
As to the experience itself: we didn't get to see a lot of wildlife because it was still chilly, but the tour was nevertheless beautiful. The captain was very skillful with the boat and was funny and informative. The best part was that we actually got to hold and pet a little wild alligator (caught by the captain of another Cajun Encounters boat)! That was absolutely awesome!
I highly recommend this company in particular- they are very professional and they take only small groups on each boat (about 22 max). Also, they have boats without roofs so you get a much better look at everything.
If you are in the area, this is a fantastic experience for the whole family!
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