This event was originally named the Last Gasp as it was a final chance to get Paris-Brest-Paris qualification. But it had connections with Science and Engineering with Brunel, Darwin and Newton being associated with each of the vertices (South, West, East) of the route.
(https://iansaudax.blogspot.com/2021/07/600k.html)
Yep, that's the one...
This event was originally named the Last Gasp as it was a final chance to get Paris-Brest-Paris qualification. But it had connections with Science and Engineering with Brunel, Darwin and Newton being associated with each of the vertices (South, West, East) of the route.
(https://iansaudax.blogspot.com/2021/07/600k.html)