What is the procedure for free viewing from the tenth floor of the Blavatsky building of the Tate Modern? Does one just find the Blavatsky elevator lift doors near the southwest corner of the entrance hall and go up to floor level ten? When one gets there, is the viewing platform obvious, or does one have to enter something else first?
Also, is it sheltered from the rain? What is it like up there? How does it compare with the view from the sixth floor of the main building of the Tate Modern? Thanks.