Bentleys in California - Route 1?

[NightDriver]

I don't normally venture into the Bentley area but hoping one of you guys may be able to help.

A few weeks back I was driving down Route 1 in California and had about 20+ uk registered bentleys fly past in the other direction. I was in a hire car but would love to one day do the drive in my own car, does anyone have any info on who organised this run? Would be really good to have a chat with them about logistics etc.

Any help much appreciated!