I arrived in bristol this morning to this sight:

(Apologies for the poor quality of the picture, it was taken with my crappy cameraphone... the lens needs a bit of a clean.)

Anyway.  It's not, as it may seem some sort of alien invasion, but a collection of hot air balloons.  Presumably they're practicing for the Fiesta later this month.

Cool though.  I'll try and get a better picture if they're up tomorrow.

That big round blue thing in the bottom right hand corner by the way is one of those viewing platform balloons.  It's very cool.  You can see all the way to America from it!

Er... or it could be Wales.