Filip P.
Google
Tolmin Gorge is just as beautiful as many other natural spots in Slovenia. One big advantage here is that they limit the number of visitors allowed inside at the same time, so you can actually enjoy the scenery in peace (though you might have to wait a bit to get in).
About a 15-minute walk away, there’s the P2 parking lot — it’s fairly large (fits around 50 vehicles) and free of charge. P1 is smaller, located just a minute from the entrance, but it’s paid.