A trip to Everglades Holiday Park can be an enjoyable event and is a favorite place of mine to take visitors from out of town so that they can view some of the natural wonders nature has provided us with in this area of Florida.
Though it's a rather rustic place, far from being first class, it is inexpensive and does offer some of the best airboat tours you can find for the money. The airboat guides are all knowledgeable, friendly and well versed not only as to the plant and animal life of the area but as to its history and its importance as well. There is plenty to be seen from birds, alligators, turtles to the surrounding plant life.
If you are going on tours, however, I would avoid Sundays since even in the off season summer months, this place can become packed since it is a favorite not only with motorcyclists and tourists but locals as well.
They also offer an alligator show, which in my humble opinion isn't one of the best but generally included with your tour as well as approximately 100 camping facilities. Though they term the camping facilities as "deluxe," that may only be because many have hookups for sewage and electric. In actuality, other than the hookups, they are bare ground, without RV pads and can become a rather soggy mess in the event of heavy rains.
There is also a souvenir shop, fishing supplies, and boat rentals. As far as fishing, it is well posted that you must have a Florida fishing license but you may want to check on that if you are a Florida resident over 65 years of age as you may be exempt. Also, though very limited, general grocery supplies and a small order from the counter only restaurant named "Gator Bites & Frog Legs" which, besides various other items actually does serve gator as well as frog legs.