Benjamin Goode’s body was found in Chile earlier this month after the “seasoned traveller” left Western Australia to explore the continent in June.
His sister Zoe Taylor-Goode, from Perth, said the 26-year-old had died unexpectedly overseas and police were investigating the circumstances.
“The death is being treated as suspicious and the circumstances surrounding what happened are still under investigation,” she wrote on an online fundraising page.
Taylor-Goode said her brother was an “intelligent, responsible, sociable young man with a heart of gold”, explaining that with his considerable travel experience, the family had “no reason to worry about his safety in the wider world”.
“As he had done in the past, I would expect him to return home when he was homesick or ready for his next trip,” she wrote.
“Unfortunately, due to his unexpected death, we are unfortunately awaiting his return, which will never happen.”
The Perth family is raising money to bring Goode’s body back to Australia, as well as legal fees, translation services and funeral arrangements.
The Ministry of Foreign Affairs and Trade has been contacted for comment.
The department told Sydney Morning Herald The family received consular assistance but could not comment for privacy reasons.