The search for missing Rye Hunt in Rio

TIMELINE OF RYE HUNT'S MOVEMENTS IN RIO DE JANEIRO:

May 16

* Hunt arrives in Rio with fellow backpacker Mitchell Sheppard and the pair check into a Lapa hostel

May 21

* Brazilian police say Hunt and Sheppard take the drug MDA before and during a party in Lapa

* Hunt's family later says this would be "out of character"

* At 6am party security take Hunt and Sheppard back to their hostel after they suffer a "psychotic" episode

* The pair decide to leave Rio a month ahead of schedule and head to the international airport

* Hunt and Sheppard argue at the airport with Hunt accusing his mate of stealing his passport and trying to kill him

* The friends agree to take some time out but Hunt takes a taxi to Copacabana instead and checks into an apartment for three nights

* CCTV footage shows him buying beer before he leaves around 6pm

May 24

* Hunt's family reports him missing

May 30

* A fisherman reports seeing Hunt on Cotunduba Island which is three kilometres off Leme

* The man sighted was "very scratched" and asked the fisherman for water

* Authorities search the island but there's no sign of Hunt

May 31

* Police and additional search teams return to the island to conduct a further search

* There's no sign of Hunt

June 1

* Hunt's uncle Michael and girlfriend Bonnie Cuthbert in Rio to join the search

Source: Rio's missing police unit investigation and family statements.