 And the whole Hajj, like the other voluntary pilgrimage, the Umrah, involves plenty of rituals held outdoors in the heat under the sun. There's the Tawaf, for example, the repeated walking around the holy stone building known as the Kaaba in the centre of the Al-Haram Mosque. We wanted to hear more about the experience of pilgrims, so we brought together three of them. Angelica lives in Arizona, in the United States. And two men, each of them are called Ahmed, but I promise you it's easy to work out one from the other. One's from Kenya, the other's based in the United States, but grew up in Saudi Arabia.