There is nowt to enthuse a lengthy stay at Arthur River, save for the atmospheric walks along the coast to Edge of the World and further on into the Tarkine proper.
Corrina is a mixed bag, though popular with canoeists, and latterly mountain bikers. Walking and MTB maps are available at the Store in Corrina. Anything else further out needs careful planning — the Tarkine is renowned for its indifferent weather and challenging terrain (as Rob Blakers himself would attest to!). Personally I have been content with wandering up and down the river close to camp rather than venture further out. I didn't have my bike with me so participate in MTB trail riding, and felt very limited both by the irritatingly down weather and just getting around by foot. The major problem with Corrina is the weather — typically Tasmanian west coast ...
drack. Of the four days I spent there (camping) in 2015 it rained each and every day. Fifth morning, departure day, onto the ferry and back to civilisation in bright warm sun...
Photography from Ted Mead and Rob Blakers will give you a wide-eyed view of the coast up and down from Arthur River, particularly the central Tarkine with its massive dune swales and granite tors, to say nothing of the craggy coast that fishermen earnestly avoid — save for the highly-prized rock lobsters that are the preserve of a few tough nuts plying the waters from A/River and Temma. I would not do any of those exposed beach walks in inclement weather, nor in persistent hot sun, and in October you'll get very wide (and frequent) variations. Corinna was my highlight. I hopped on the
Arcadia ferry from Corrina to the Heads, and that section of debris-strewn coast can be particularly wild and unwelcoming in marginal weather (I took shelter in a hut as surfable waves came up on the Arthur!). In terms of walking, seek out advice from Arthur River Parks Rangers. On that subject, an Arthur River Ranger advised me that what is possible and easily achievable by foot in the morning may be impossible just a few hours later, because of rapid changes in weather, tidal variations, the presence of quicksand (!) and "meandering river mouths" (Interview River). "Always have a Plan B and C!", he said. Inland over hill and dale and largely untracked would be much more challenging, though undeniably atmospheric in the Tarkine's very special far-from-anything way.
Don't discount the splendid rainforest scenery in the immediate Corrina vicinity, but especially downstream along the dark, deep tannin-stained river. It might be possible to hire a canoe at Corrina and paddle out leisurely downstream to one of the accessible waterfalls through rainforest. Some walks have been extended from the camp downstream since my distant visit.