Sloping main is a great place to visit if your thinking of heading down to the Tasman peninsula it is not to far from the old convict coal mines and has a beautiful long beach with the most lovely white sand there are no camping sites in this area but well worth a day visit.
I take my kids down every summer for upto a week. My parents hire a shack down there and we camp at the back of that. Its just a beautiful spot with a small park for the kids. Beautiful swim friendly beach. Nice walks. Floating pontoon for the swimmers. Only 10 mins from Nubeena. We often do the loop and check the sights from nubeena to port arthur. Great history rich place and close to everything. Oh and sloping main is only 5 mins from premaydena shop/servo