ESS has supported some pretty out there endurance events in hot conditions and are leaders in managing events, athletes and crew in hot and/or humid environments. We use the WBGT heat index to evaluate conditions and put in place strategies to avoid heat illness. As well as helping manage lots of summer endurance events, last year we advised Kirrily Dear and her crew about heat management for her 12-day, 860km in western NSW in a hot summer and we are working with Mina Guli as she prepares to run five marathons across the Tanami Desert in February.