Laying dormant under the ground adjacent to Tate Modern’s turbine hall, the mammoth Oil Tanks are now a key part of the plans to develop the building over the next five years. As a prelude to the building work, Tate invited artists Bonnie Camplin and Paulina Olowska to create a special tour for a few lucky members of the public. Using light, found objects and their own creations, they give the space a surreal twist, before guiding a group and pointing out their interventions in eerie silence.