When your family calls you to come upstate because it is berry week, you go. There is one week out of the entire year that the town I grew up in is overflowing with wild berries that are so sweet and delicious! I spent the afternoon picking them with my sisters and the early evening making my first pie (I am more of a crisp type of girl) and it was delicious!
Similarly to my post on edible plants, foraging for food is extremely sustainable if done responsibly. These berries are wild, abundant, and delicious. They can be used for anything any other berry can be used for AND they are totally free!