London is alive with summer festivals introducing us to so many new and amazing things. The InTRANSIT Festival in Kensington and Chelsea is one of them, now in it's eighth year. The aim is to explore and enjoy the physical spaces and architecture of the borough through a mix of arts, performance and different cultural events. Among them is a tour of the borough's toilets. We caught up with tour guide Rachel Erickson on her Waterloo tour to get the lowdown.