Hundreds of people were at Cribbs Causeway to greet celebrities Gary Barlow, Chris Evans, James May and Brian Cox.
The four set off from Lands End early this morning in a pink Rolls Royce. They're heading to John O'Groats to raise money for Breast Cancer Care.
More top news
Find out which train services will be affected by the strike - and plan your bank holiday accordingly.
Bob Crampton has some good news about the weather over the coming days - he even uses the words "unbroken sunshine".
Bath centre Sam Burgess has made it into the England squad for the Rugby World Cup just ten months after switching codes.