hey linda05
all keys locations are noted by mile markers (MM). marathon is MM50
the only thing i could add (see hills27) is a stop at "the no name pub", on big pine key, (MM30)for a cuban sandwich or a pizza. most times touristy but you might just find locals hanging out, depending on when you go. the drive thru key deer refuge en route is amazing if you are lucky enough to see them. . . drive real slow and look down those roads, and in the thicket. . .