come see me
Take a day trip to Everglades national park and go walking on the trails like the Anhinga trail. Amazing birds, and the kids can see gators in their native habitat.
http://www.nps.gov/ever/visit/trail-rp.htm
An airboat ride in the Everglases is fun.
Butterfly world is a really nice place to see.
http://www.butterflyworld.com/
which is not that far from lion county safari
http://www.lioncountrysafari.com/
Museum of discovery and science is fun for the kids
http://www.mods.org/
As is this childrens museum
http://www.youngatartmuseum.org/
Riverwalk area in Ft. Lauderdale is very happening. I think the performing arts is playing Pinocchio
http://www.goriverwalk.com/arts.htm
The weather will be a nice break for you! You should enjoy Flamingo Gardens. It's about 5 miles from my house. I'll see what else I can think of.
There is also Miami metrozoo, Miami seaquarium, Parrot Jungle, and Monkey Jungle in Miami.