Twins make history as youngest to climb Seven Summits in "celebration of sisterhood” An inspirational pair of twin sisters went from never having even slept in a tent to breaking a record by climbing all of the world’s highest mountains and volcanoes. Iulia Jaso and Delia Wookey (both Romania) now jointly hold the honour of being the youngest person to climb the Seven Summits and the Seven Volcanic Summits (female). They were 33 years 216 days old when they reached their final summit on 29 May 2