When I grew up in Menorca, Spain, Menorca's summer fiestas, particularly the Jaleo, are a unique blend of tradition, equestrian skills, with each town celebrating its patron saint through horse parades, music, dancing, and fireworks. The Jaleo is a highly trained rider, dressed in their amazing traditional costumes and follow strict protocols with the Menorcan horses rears up on their hind legs while riders and crowds interact going down a very narrow street - The people in the crowd can walk up to the Menorcan horse and reach for its heart for good luck (you can imagine how dangerous this is, considering the horse will kick and some have died, I remember 1 person did die in hospital when I was very young, getting kicked in the chest pretty hard, crazy stuff) The Menorcan Horse is absolutely beautiful though if you've never seen one.
I'll attach some images from google so you have an idea of the horses and festival.
The main part of the fiestas is the food though with traditional Menorcan dishes like lobster stew, sausages, and artisan cheeses, the drink is the Pomada, a mix of gin and lemonade.
These festivals go on for months, sometimes from Junes all the way through to September, different towns celebrate it at different times, sometimes at the start of every month between June-September