@LaurieDi
A bit late to this, have been enjoying summer and taking a break from social media.
Bruny Island. Named after French Rear Admiral Bruni D’Entrecasteaux. The channel between the island and Tasmanian mainland also bears his name. Not too far from where I live when in Tasmania. I have driven over to Bruny a few times and sailed there. To sail in the channel with the land on either side is visually stunning.
This local business offers the best water options: https://www.brunycruises.com.au/ . The full day tour is the one I would go for https://www.brunycruises.com.au/#tours. I think booking directly with them would be best. My daughter, husband, their children, and a gaggle of friends did the 3-hour bit from Adventure Bay during Oct 21 and were entertained by a young humpback practicing its breaching technique.
Should one decide on driving on the island this website gives suggestions on food etc. https://hobartandbeyond.com.au/blog/a-gourmet-guide-to-bruny-island/.
National Parks.
Tintaldra’s tough call is on the mark. If we were playing bridge, I would double that call.
Almost 25% of mainland Tasmania is classified Wilderness World Heritage site. Additionally, there is 19 National parks, 816 nature reserves covering a further approximately 40%. Some are overlapping. Add to these 21 marine reserves.
Probably Cradle Mountain offers the easiest access, comfortable facilities, and opportunities at sunset to observe the unique nocturnal wildlife. Autumnal April/May is the time I enjoy. https://www.abc.net.au/news/science/2020-04-26/true-blue-autumn-leaves-are-turning/12147698. Mid-winter with a decent snowfall is nice and quiet.
Found this YouTube to share about one of my favourites not too far from where I live. https://www.bing.com/videos/riverview/relatedvideo?q=Hartz+Peak+youtube&mid=42C17A09A1B8BABF92DF42C17A09A1B8BABF92DF&FORM=VIRE. Summer is the best time. The duckboards are to protect the flora, not necessarily to make things easy for hikers. The tarn water temperature mid-summer is about 5c.
Regards
Ron