Milne’s picnics Winnie-the-Pooh (1926) are happy leisurely events held in “a “Nice Place for Piknicks” in the area in “The Hundred Aker Wood.”
It’s a location just above the “Sandy Pit where Roo Plays.” No doubt, where Christopher Robin holds a formal picnic party for which Pooh agrees to attend because pink “little cake things” will be served.
A less formal picnic simply has Christopher Robin, Pooh, and Piglet happily spread out on a blanket. There is a honey pot in front of Pooh.
See A.A. Milne. The World of Pooh; The Complete Winnie-the-Pooh and the House at Pooh Corner. With decorations and new illustrations in color by E. H. Shepard. New York: E.P. Dutton, 1957.