Seattle, Washington here - we had 3 groups this year - each one rode about 35 miles in a couple of hours.
1.) East Side - 79 riders
2.) North End - 254 riders
3.) South End - 165 riders
I joined the East Side group. We met at a local brewery at about 8:30 am on Sunday morning. It had rained a couple of hours earlier and the roads were wet with standing water here and there. Here's a picture of me leaving the house in 45 deg weather.
Here's a picture of some of the East Side organizers:
We stopped every 10 miles or so to regroup and have time to meet each other and talk about the bikes. Eventually we met the other 2 groups at a famous Seattle restaurant named Ivars Fish Bar on the North end of Lake Union. Over 500 vintage and cafe bikes.
The ride ended at the Cretins motorcycle club
https://cretins.org/
They had a bonfire going, a live band, and a food truck. Prizes were awarded for best bike, best gentlemen, best gentlewoman, and best rider/bike. I got several votes, but didn't win anything. Still a good time and a great ride.