A Brazilian tourist who fell while hiking near the crater of an active volcano in Indonesia has been found dead, her family and rescuers said.

Juliana Marins survived the initial fall from a cliff during an early morning group hike along a steep trail on Mount Rinjani, with rescuers reporting hearing her screams for help on Saturday.

But efforts to reach the 26-year-old over the following days were hampered by the extreme terrain and foggy weather, according to Indonesian authorities.

After a complex rescue operation, teams finally reached her body on Tuesday, her family said in a statement on social media.

"With great sadness, we inform you that she did not survive," Marins' family said. "We remain very grateful for all the prayers, messages of affection and support that we have received."