Marrie Bot's best photograph: bath-time on an ancient pilgrimage through Andalucía

‘We were out on the trail for three days with no shops and nothing to eat. And all I had with me was my camera, 20 rolls of film and a T-shirt’ I’ve been taking photographs on the El Rocío pilgrimage for 40 years, and it’s still just as intense an experience as it was the first time. Each year, more than 100 brotherhoods travel to the hermitage at El Rocío from all over Andalucía. I had heard that the Brotherhood of Triana was famous for its richness