On 12 November, 5 days after the Nyamulagira volcano in Virunga National Park began erupting, warden Emmanuel de Merode, Tourism Director Cai Tjeenk Willink, and Volcanologist Dario Tedesco hiked to the eruption site and set up a camp for a new overnight tourist trek. The night-time fire show was, "the coolest thing I've ever seen," according to Cai.