Yosseph "Yossi" Ghinsberg (Hebrew: יוסי גינסברג; born 5 April 1959) is an Israeli adventurer, author, entrepreneur, humanitarian, and motivational speaker, now based in Byron Bay, Australia.

He worked several jobs to save the money to travel to South America and dreamed of exploring the uninhabited heart of the Amazon jungle.

Ghinsberg hitchhiked from Venezuela to Colombia, where he met Markus Stamm, a teacher from Switzerland, in the midst of his expeditions, and the pair became good friends and traveled together to La Paz, Bolivia.

Ruprechter told Ghinsberg that he was planning an expedition into the uncharted Amazon in Bolivia, in search of gold in a remote, indigenous Tacana village.

[7] Then, according to Karl's stories about having visited an ancient indigenous village hidden deep within the rainforest – inhabited by "primitives" who had seen very few white men in their lifetime – the group began traveling up the Asariamas River, and across the mountains on their way there.

There, Ruprechter suddenly told them about San Pedro Canyon – a dangerous series of rapids, waterfalls, and boulders unsuitable for boating – and the fact that he could not swim, and thus refused to continue on the trip.

Back in the city of La Paz, he visited the Israeli and Austrian consulates to request their help preparing rescue missions for his friends.

[12] Ghinsberg made his way back to the river and met Gale, along with indigenous people who had organized a search and rescue mission led by Abelardo "Tico" Tudela.

Jungle, starring Daniel Radcliffe, was released on 17 October 2017 after being filmed for six weeks in April and May 2016, in the Colombian sites of Tobia, Guaduas, and Honda, and in Mount Tamborine, Queensland, Australia.

[3] Ghinsberg co-founded EthnoBios, a biodiversity prospecting company local to the Amazon basin, and taught the indigenous people how to protect their intellectual properties.

[18] Ghinsberg was recruited in 1995 by The Center for Investigation & Treatment of Addiction (CITA) International to serve as Vice President for Development.

In this capacity, Ghinsberg has founded 12 centers for the treatment and research of opiate addiction in different parts of the world from Mexico to China.

[19] In Australia, Ghinsberg founded The Alma Libre Foundation dedicated to assisting opiate addicts and providing rehabilitation options for re-integration into society.

[23] The book became popular in Israel and sold millions of copies, and it has been translated into 15 languages and published in several countries under different names, including Heart of the Amazon (Macmillen) Back from Tuichi (Random House),[3] and Lost in the Jungle (Summersdale).

[24] Ghinsberg is an active motivational speaker who offers keynotes and inspirational speeches that cover his past expeditions and experiences.

In the film, Ghinsberg returns to the Bolivian jungle and the community who assisted in his rescue, and discusses how they have adapted to the influx of tourists in the wake of his survival story.

In September 2016, Ghinsberg returned to Bolivia to speak at the Solon Foundation and El Bala about his Amazon survival experiences.

[9] After returning from the Amazon, Ghinsberg graduated from Tel Aviv University in Israel with degrees in Jewish Philosophy and Business Administration.

In 1997, Ghinsberg moved to Australia to help establish clinics that offer drug and alcohol detoxification recovery and treatment programs.