
1) Island of South West Tasmania
Found on
https://www.crosswordclues.com/clue/mewstone

Mewstone is an oval 13.1 ha island, composed of muscovite granite, with steep cliffs and a small flat summit. It is part of the Pedra Branca Group, lying 12 km southeast of Maatsuyker Island, and 22 km off the south coast of Tasmania in south-eastern Australia. Its highest point is 150 m asl. Although it is sometimes referred to as Mewstone Island...
Found on
http://en.wikipedia.org/wiki/Mewstone
No exact match found.