Several miles from us there used to be a swamp that covered several hundred acres, in it were huge blueberry bushes that produced the best blueberries. Since the Nature Conservacy owned the swamp it was open to anyone who wanted to venture inside it's spooky boundaries on foot and pick blueberries.
It was tricky trying to decide where it was safe to step without becoming bogged down, adding to the challenge we also had to be on the alert for bears who also enjoyed wandering in to eat their fill of blueberries.
Every summer we would take several evenings to go pick blueberries. We would hitch our horse to our open buggy and set several five gallon pails on the back. We would each take a piece of twine and tie it to an ice cream pail which we then hung from our neck, that way we could pick with both hands and get done so much faster.
Once the pails on the buggy were full we would head for home where we had to painstakingly sort all the berries and get them ready to can pie filling the next day. A good evening of picking would often yield a hundred quart or more which we always enjoyed eating during the winter. Nothing beats the flavor of big juicy wild blueberries.