Calling all geeks! In a festival of 15,000 people, there must be some, and you might enjoy sessions like this, where nothing much happens except you get to examine weird little plants (and some creepy-crawlies) using illuminated lenses and digital microscopes.
The lead characters are two different kinds of ‘primitive’ plants, mosses and lichens, that both have huge pedigrees going back hundreds of millions of years, found all over the world in all seasons with thousands of different kinds. Each has a claim to be The Plants What Conquered The Land, creating stuff to eat for the animals, who came ashore later. Plants roll their own food from the sun, cunning blighters.
Anyway, it can be enlightening to find that what you thought was a just a green fuzz in the pavement, or a chewing-gum stain, is actually a distinguished organism with a complicated sex-life, possibly like yourself.
Join a botanical arch-geek in the woods and fields surrounding the festival site, in search of the descendants of those early pioneers, without which you might not be here at all.