Melbourne to St Augustine
I agree with Whoosh. I just made the trip from Melbourne to HHI, and am glad I did not miss Cumberland Island and the other areas of the Georgia Coast (St. Simons in particular). The coastal marshes and barrier islands as seen from the ICW have some great scenery.
Don''t even think about doing the ICW from Jax Beach to St. Augustine. It is the ugliest stretch of "water" I''ve ever seen - a dead straight ditch dug through scrub pine woodlands, filled with black water. Boring beyond belief!