I'm glad you said a
small share of hoons, flyfisher. Most 4 wheel drivers respect the bush and do their best to "Tread Lightly". Sandy Cape is popular, mainly on holidays and long weekends, but is often not accessible past the Thornton River due to high tides, storms or lots of rain. South of Sandy Cape to the PIeman is far less travelled and even more often inaccessible due to river/beach conditions. Having said that, I just remembered some of the Queensland beaches wall to wall with 4WD's, and it's nothing like that! You don't see all that many people down there in general.
There is a 4WD track all the way, but it's generally just a single track wide and there isn't much other damage, at least there wasn't when I last went. The scenery is wild and beautiful, and it would be a lovely walk. You do not need a guide to find your way, a fact that a disgruntled customer of a commercial trekking company that we met was not made aware of before he signed up. However, a guide would know the best ways across the rivers no doubt, and the nicest places to camp etc.
Getting a lift to Temma, or preferably the Thornton River would probably be good, what do you reckon flyfisher?
I'm not sure how you would get across the Pieman River, whether you started or finished there. You could probably go on the cruise boat between Corinna and the Pieman Heads, but they stop on the southern side of the Pieman. Here are some photos:

- Coast.jpg (61.1 KiB) Viewed 12478 times

- Coast2.jpg (89.52 KiB) Viewed 12478 times

- Creek.jpg (112.51 KiB) Viewed 12478 times

- Sand dune.jpg (40.52 KiB) Viewed 12478 times

- Wave.jpg (64.31 KiB) Viewed 12478 times