Pieniny
The Dunajec's limestone gorge and the raftsmen who have run it since the 1830s — Poland's oldest park idea, made cross-border with Slovakia in 1932.
The Pieniny are a klippen belt — lenses of hard Jurassic limestone caught in softer flysch and etched out into sudden white teeth between the Tatras and the Beskids. The Dunajec is older than the mountains' final folding and simply kept its course as they rose, cutting an antecedent gorge that hairpins beneath three-hundred-metre walls; Trzy Korony's summit crown (982 m) and the pulpit of Sokolica with its wind-flagged relict pine — some five centuries old, and lucky to survive a helicopter's rotor wash during a 2018 rescue — stand directly over the river, which forms the border with Slovakia for the length of the defile.
This is where Polish nature protection began pairing across frontiers: a national park was created here in June 1932 (re-established 1954–55), and with the Slovak reserve declared across the river weeks later it made Europe's first deliberately twinned cross-border parks — PIENAP still faces it from the right bank. The other institution is older still: flisacy have poled visitors down the gorge on lashed spruce pontoons since the 1830s, Sromowce Wyżne-Kąty to Szczawnica in a couple of unhurried hours, and the trade passes down raft families. At the park's western door the castles of Czorsztyn and Niedzica glare at each other across a reservoir the conservationists fought for decades and lost — the dam closed in 1997, and the park begins where its backwater ends.
Because ice-age glaciers never scoured the Pieniny, the range kept what its neighbours lost: pre-glacial relicts including its own endemic dandelion, Taraxacum pieninicum, clinging to Trzy Korony's ledges. The dry meadows below the crags are among the most species-rich habitats in Poland — orchids in June, a famously successful reintroduction of the Apollo butterfly drifting over the scree in high summer.
What's worth knowing before you go
Szczawnica and Krościenko nad Dunajcem are the gateways, with buses from Kraków and Nowy Targ; the raft embarks at Sromowce Wyżne-Kąty from April to the end of October. Walk before you float: Sokolica and Trzy Korony (its summit platform is ticketed and queues by mid-morning) are short, steep climbs best taken early. September gives low crowds, clear air and the first colour in the gorge.
The connoisseur's move is to see the gorge from its floor without a raft — cross to Červený Kláštor and walk or cycle the Slovak bank's riverside path, at water level beneath Sokolica, with the rafts sliding past below the pines.