Midsummer Night's Dream. After all, August 4th is pretty much midway between solstice and equinox -- in other words, the middle of summer, i.e., midsummer.
The midsummer festival is apparently a very big thing in many places, especially in Sweden, with much in the way of eating and drinking and even doing a sort of 'froggy' dance as part of their celebrations.
This year, as part of my trying to learn more about this observance (as truly, it has puzzled me a long time, at least as far back as Woody Allen's A Midsummer Night's Sex Comedy), I poked around and even found a novel The Hidden Beach.
The book is set in Sweden, and the festivities feature prominently. Unfortunately, I only made it about halfway through, as the sub-plot proved to be overly romantic for me. Maybe I gave up too soon, but really, an awful lot of other books are always calling to me.
As for me, I think I will do my own celebrating tonight. The moon is nearly full, and we're just about exactly halfway along the path from summer solstice to the arrival of autumn on September 22nd. Until then, I'll keep picking blackberries while the bees buzz their work-songs in my ear, and be glad that we're all still able to spend so much time outside.