The Prince of Wales and the Duchess of Cornwall have stopped in a village in northern India to see how the region is coping with a water shortage.
Charles and Camilla see water conservation efforts in India
As temperatures passed 42C, they spent two hours being shown around Artiya in Rajasthan, leading Camilla to ask for "the thermostat" to be turned down.
They explored houses in the village, which has a population of about 1,600.
Locals crammed on to the roofs of the small buildings to catch a glimpse of the royal couple.
A day after being described as "daisy fresh" by one Indian newspaper, Camilla looked less comfortable in the sweltering heat.
Pausing during their visit she puffed out her cheeks and said with a smile: "Turn the thermostat down a bit."
She twice retreated into the shade inside a small mud hut for a cool drink of water and had a brief conversation with the royal doctor as she sheltered from the heat.
The prince and the duchess were each garlanded with three rings of orange marigolds by local women, who also decorated their foreheads with red tikkas as a mark of respect.
Camilla was also given eight thin, red and silver metal bangles, which were too small and became stuck on her hand.
Prince Charles asked if they would come off again as villagers tried to help remove them, but Camilla dismissed the problem saying: "I like having them on."
The Maharaja of Jodhpur, Gaj Singh II, had also joined them and was presented with an orange saffa turban to wear.
The couple are staying at the Maharaja's Umaid Bhavan Palace in Jodhpur, which he has also partly converted into a five-star hotel.
As Charles and Camilla walked through the dusty lanes, a mob of Indian media bustled around excitedly.
At one point they chanted "Two words, two words" in a bid to get the prince to speak.
Struggling with feedback from the microphone he told them: "When we return to Britain, my wife and I will keep you all in our hearts."