An adorable video has emerged of a toddler climbing a 7ft indoor bouldering wall without a harness in Arizona, US late last month. The footage shows the 19-month-old girl carefully and thoughtfully making her way up and over the climbing wall. The filmer called her "our little monkey" who had "mastered" the climb - adding "she is learning how to decide movement and reevaluate her hold choices which is exciting to see!" Bouldering is done close to the ground with mats but no harness.