I forgot two places - both as bad as Zakopane - One is the Hel(l) Peninsula, it’s as overcrowded as Zakopane; but it has a single road (one lane each way) that gets jammed very fast, you can be stuck there like 5 hours, even though it’s only 30 Km long. The second one is Krynica Morska, a town located on the Vistula Spit(separating Vistula Lagoon from Gdańsk Bay, in the Baltic Sea) and it has the same problem as Hel - it’s a popular destination with only one road in and out.
I forgot two places - both as bad as Zakopane - One is the Hel(l) Peninsula, it’s as overcrowded as Zakopane; but it has a single road (one lane each way) that gets jammed very fast, you can be stuck there like 5 hours, even though it’s only 30 Km long. The second one is Krynica Morska, a town located on the Vistula Spit(separating Vistula Lagoon from Gdańsk Bay, in the Baltic Sea) and it has the same problem as Hel - it’s a popular destination with only one road in and out.