Assumeing that you can somehow find a way to tramp through the vine encrusted palm meadows infested dry spits of sand while covered in bannana spiders webs over the clothes your wearing over every inch of your body so that a swarm of the second place choice for the Florida State Bird and Insect (The Mosquito) doesn't carry you off and suck you dry, stoping every three steps to pick the sand burrs out of your pant legs and shoes, wishing someone would turn off the sauna and praying that wasn't lightning you just heard just ahead.. You could use a topo map in Florida to avoid the real swampy areas moveing cross country, as well as move to the small inland lakes and streamlets and such for fresh water to purify.. or avoid major roads if that floats your boat..