The Prince of Wales has praised the Lake District after unveiling a plaque declaring the area a World Heritage Site.
Describing the Lakes as "a particularly special part of the world", Charles said he is always struck by the resilience of communities in the area.
"Over the last 17 years I have made regular visits here, beginning at a time of crisis during foot and mouth.
Lord Clark thanked the prince for attending the event.
He said: "We know he is a regular visitor to the county and we appreciate it so much."
Environment Secretary Michael Gove was also at the event, along with Michael Ellis, Minister for Arts, Heritage and Tourism.
There were performances by schoolchildren and cast members from productions at the Theatre By The Lake before Charles unveiled the plaque, built on top of a dry stone wall.
Charles arrived in the region on the Royal Train at Langwathby station.
Later, he was due to the visit National Centre for the Uplands at Newton Rigg College and a Kendal paper manufacturer which recycles takeaway coffee cups.