Brunel Museum’s tunnel shaft to open for free in August

The huge underground circular shaft dug by Marc Brunel in Rotherhithe to help build the Thames Tunnel will be open to the public for free in August.
Brunel Shaft (c) Brunel Mueum
Sitting next to the Brunel Museum, it’s already open as part of the paid museum, but the museum is only open from Friday to Sunday, so the shaft will be open for free on Tuesdays and Wednesdays throughout August.
It’s a cool subterranean space, so a chance to cool off in the (usually) hottest month of the ye