A walker with sunstroke was rescued by coastguards from the coastal path at Rocky Valley near Tintagel at about 2.50pm today.
Rescue teams from Port Isaac and Boscastle called for an ambulance as the man had collapsed due to heat exhaustion.
They helped carry him out to the ambulance, from the bottom of the valley.
A coastguard spokesperson said: "I would ask peolpe to be aware of their own limitations, especially in this heat.
"Always be sufficiently prepared on hot days."