Longest slackline walk over an active volcano (ISA-approved)

The longest slackline walk over an active volcano was 261 m (856 ft) by Rafael Zugno Bridi (Brazil) and Alexander Schulz (Germany), who crossed at a height of 42 m (137 ft) above the crater of Mount Yasur, a stratovolcano on Tanna Island in Vanuatu on 15 April 2020.

Mount Yasur has been erupting continuously since at least 1774. Schulz was inspired by his volcanologist father to slackline over an active volcano, with the result being the "LavaLine" project. Erta Ale in Ethiopia, the Masaya in Nicaragua and the Nyiragongo in the Democratic Republic of Congo were all considered before Schulz and Bridi settled on Yasur on the South Pacific island nation of Vanuatu. (Yasur is revered by the John Frum cargo cult, which believes that their deity, John Frum, lives inside.) The team overcame extreme humidity, acid rain, red-hot lava fountains and toxic fumes – as well as travel and personnel issues caused by the COVID-19 pandemic – to achieve their audacious goal of becoming the first people to slackline over an active volcano.