On which island did Martin Bryant massacre 35 people in 1996?

Martin John Bryant (born 7 May 1967) is an Australian man who is known for murdering 35 people and injuring 23 others in the Port Arthur massacre, one of the world's deadliest shooting sprees, in Port Arthur, Tasmania, Australia, between 28–29 April 1996. He is concurrently serving 35 life sentences, plus 1,035 years, all without the possibility of parole (thus meaning that the life sentence imposed is for the term of his natural life) in Hobart's Risdon Prison.

Bryant has provided conflicting and confused accounts of what led him to kill 35 people at the Port Arthur site on 28 April 1996. It appears that it could be his desire for attention, as he allegedly told a next-door neighbour, "I'll do something that will make everyone remember me".