Where is it?

Tasmania is a state of Australia.

It is an island about 200km off the south-east tip of the mainland.

Larger map 

About the map of Tasmania on the right:

It came from
http://www.tas.gov.au/tasmaniaonline/about/maplarge.asp
with the note:
This map is supplied courtesy of Information and Land Service, Department of Primary Industries, Water and Environment. It should not be reproduced with out the express permission of that agency.