"Buki Mierzeja Wiślanej" - a forest nature reserve on the Vistula Spit, with an area of 7 ha, in Krynica Morska, in the "Vistula Spit" Landscape Park. Mainly acidic Pomeranian beech forest (almost 200-year-old beeches, oaks, spruces, birches) and small patches of alder forests are protected. Douglas fir, European larch and white pine were artificially introduced. There are also sites of numerous protected plant species (including the snowdrop).
The reserve was created in 1962.