Bixa, there are basically no parking lots around there. A few small paying ones for participants. There are areas for trucks to deliver things or animals, but no place for private cars. A metro stop and tram stop right in front though.
It is not a free event, so it rakes in bundles of money. But all sorts of association distribute free tickets. The lack of parking at Porte de Versailles is one of the reasons for the creation of the other exhibition centre near the airport. However, there are bus parking areas in Paris, which means that any bus coming from afar would drop off its passengers at the Salon, go and park somewhere for the day, and then go back and pick up the people at the scheduled time.
Just for the record, the final day (tomorrow) of the Salon de l'Agriculture has been cancelled due to the coronavirus alert. Today would have been a great day to go, because I'm sure the exhibiting vendors are slashing the prices on everything.
I am nearing the end of this report -- just a few more things -- and then I will release you to your normal activities.
And so it was time for me to leave. People -- and school groups! -- were pouring in, so I was glad to be on my way out after about three and a half hours. (President Macron had to spend 11 hours this year.)