Born and raised in Florida this list in comprised of all my favorite cheap places to go and cheap things to do with my family.
Some places and ideas listed are just one or two hours of fun and some are all day fun!
(All prices,dates and times should be verified before visiting. Please verify with venue websites where applicable)

Environmental Center
2985 Osprey Trail Longwood, Florida 32750

www.scps.k12.fl.us/environmentalcenter/Home.aspx

The Environmental Center needs our help to keep it's doors open. The first time I visited here was on a 5th grade field trip with my son. There are two portions of the field trip dry day and wet day. I went on the dry day. While there we took a class and visited the Natural History Museum. There are plenty of places to picnic. There are also Trails that wind through 5 natural habitats and lead to an awesome view of Lake Jesup. The classes are reserved for field trips but the trails only will keep you busy.

Personal Recommendations:
Bring water.
Wear Comfy clothes and shoes
Bring your own food and drinks.
There are public restrooms.
Make a donation.

Hours of Operation: (Weather Permitting)
365 days a year from sunrise to sunset

Cost:
FREE