DNA extracted from Hveragil hot spring gorge. (A) 3D render of Hveragil hot spring gorge from a drone flight highlighting the location of sample collection (decimal degree (DD) coordinates: 64.683067, −16.527890). Render completed using footage from a Mavic Pro Drone (DJI, Shenzhen, China) and Pix4Dmapper software (Pix4D, Lausanne, Switzerland). (B) Landscape photograph indicating the location of sample collection “Hveragil gorge” and the base camp where DNA extraction and sequencing took place (“Sequencing lab”). (C) A photograph showing the set up for tent-based DNA extraction in a sleeping bag lab. Items displayed are labelled. Terralyzer for bead beating is omitted from the photograph.