I have been thinking I want to try mud lately. does anyone know any good spots in the south Florida area?

Make sure it is salt water based mudnot fresh. Serious bacteriological problems with fresh water mud in South Florida

Also watch where you are. They got gators! Lake Jessup would be perfect if not for that.

There's a big 4x4 mudbog community in Florida, I'd suggest looking for their playgrounds/trails.