Managing visitors who flock to Roys Peak for its spectacular views over Lake Wanaka is high on Doc’s priority list. Photo: Supplied : Focus on managing demand, sustainably

Doc’s Gavin Walker and partner Marielle Thomson at St Bathans. Photo: Supplied : Focus on managing demand, sustainably

Thousands of visitors flock to the Southern Lakes each summer for views like this. Photo: Tracey Roxburgh : Focus on managing demand, sustainably

Doc has stepped up its maintenance work on its huts, tracks and toilets, such as those on the Routeburn Track (pictured), ion preparation for what is expected to be one of its busiest summer seasons. Photo: Wikipedia Commons : Focus on managing demand, sustainably