These are scenes which were supposedly along a route from Pu'u O'o to the Pacific Ocean in the Kilauea episode of Man vs Wild. Except for the landing site, they were, in fact, a few feet from various roads and highways used by thousands of tourists daily. Update: The original concept was that Bear Grylls would be dropped into remote areas and make his way to civilization with no help. The Discovery Channel removed this episode and several others from circulation after they were shown to be fake. Other early episodes were heavily edited to remove fake scenes, and new voice-overs were used to disclose that he received help from the crew including the building of shelters and the supplying of animals. Disclaimers on recent episodes disclose that scenes are staged.
Bear ties a T shirt around his head to protect himself from volcanic gases. The Hawaii Department of Health states that such methods are not effective in removing gases such as sulfur dioxide.
http://hawaii.gov/health/about/reports/vog_qa.pdf) If it were able to filter a gas like sulfur dioxide, it would also filter a gas like oxygen.
It has been disclosed that the fumes shown in the episode were generated by fog machines.
http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/tv_and_radio/article2241720.ece)
Volcanic fumes which have irritants like sulfur dioxide or hydrogen sulfide have a bluish tinge. Except for the main vents like Puu Oo and Halemaumau, gases which contain irritants are limited to extremely small areas over lava tubes and can be easily gone around or walked through in seconds.

Bear ties a T shirt around his head to protect himself from volcanic gases. The Hawaii Department of Health states that such methods are not effective in removing gases such as sulfur dioxide.
http://hawaii.gov/health/about/reports/vog_qa.pdf) If it were able to filter a gas like sulfur dioxide, it would also filter a gas like oxygen.
It has been disclosed that the fumes shown in the episode were generated by fog machines.
http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/tv_and_radio/article2241720.ece)
Volcanic fumes which have irritants like sulfur dioxide or hydrogen sulfide have a bluish tinge. Except for the main vents like Puu Oo and Halemaumau, gases which contain irritants are limited to extremely small areas over lava tubes and can be easily gone around or walked through in seconds.
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