Why Orrin's northern dunes are dark basalt that looks blue from orbit, how they creep a few metres a year, and how to walk them safely in a pressure suit.
At Veyra's south pole, ice sprays into space from long fractures called the Tiger Lines. A guided walk across the geyser field, the rhythm of the plumes and why you want to see them backlit.
Four days and 38 km along the rim of the Gediz canyon, from Corran's dome past Bolívar Pass to the view of Mount Halvard. Suits, huts, air, water, packing and fitness, day by day.
Two days from Halcyon, Calder's airless moon offers walkers a black sky at noon, the soft grey hills of the Taurin Valley and boot prints that will outlast them. Three days on foot from Camp Ardent.
