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.
Tourist looks at lava flowing in a lava tube. Notice the bluish tinge in the escaping fumes above the tube area. Except for the main vents, such as Pu'u O'o and some areas around the caldera, fuming areas in Kilauea which contain irritants from volcanic gases are highly localized and small in area. They are also present in small areas over active lava tubes, which further reduces the area of their presence to an insignificant size. They can easily be gone around or passed through by holding one's breath for a few seconds. All fuming areas away from the active tubes are composed of water vapor caused by rain water coming into contact with hot spots from previous flows.
Tourist looks at lava flowing in a lava tube. Notice the bluish tinge in the escaping fumes above the tube area. Except for the main vents, such as Pu'u O'o and some areas around the caldera, fuming areas in Kilauea which contain irritants from volcanic gases are highly localized and small in area. They are also present in small areas over active lava tubes, which further reduces the area of their presence to an insignificant size. They can easily be gone around or passed through by holding one's breath for a few seconds. All fuming areas away from the active tubes are composed of water vapor caused by rain water coming into contact with hot spots from previous flows.