Elite sport climbers Sasha DiGiulian and Matilda Söderlund team up with trad specialist Brette Harrington to attempt a free ascent of the 2,000-foot alpine rock route, Rayu – a 5.14 in Spain's Picos de Europa. Unrepeated since its first ascent by the Basque Pou brothers and Kiko Cerdá in 2020, Rayu ...