An expedition to an unnamed and unexplored glacier near the Mirror Wall area of South Renland. From Iceland they flew to Constable Point, and from there made a 12hr overnight passage in a RIB (hard boat recommended for future trips) to the drop off point and base camp. Climbs were done from an advanced base a few hours from here. Four new routes were completed, including first ascents of two mountains, Cerro Castillito and Mount Hannes. The routes were: the first ascent of Cerro Castillito by the SE ridge, 1300m at alpine AD/D; a 400m rock climb, E2 5b named ‘Arctic Monkeys’; ‘Double 00 Couloir’, an 800m snow couloir at alpine AD, and an alpine arête on Mount Hannes, a new route of approximately 1400m, Alpine TD-/TD.