My guidebook said this was a 90-minute hike, I was back in my car in less than 45-minutes. Nice hike, cool bridge. Area got too crowded as I left. When you’re about 5-minutes from the waterfall, there’s a wooden booth that looks like it could be selling ice cream or post cards and there’s a sign that says Kozjak Waterfall Entrance. I walked up to the booth to see what they had and realized it was tickets to continue the hike. As I paid, a staff member left the booth and told a group that they had to buy tickets and added: “come on, it’s obvious.” I thought that was unnecessary and rude. It is not obvious. I told them it wasn’t obvious. Instead, saying: “Excuse me. Sorry, but there’s an entrance fee” is more friendly and polite. The ticket price info is attached to the booth wall and most people are going to be looking at nature, not a tiny sign that isn’t parallel with the trail. Installing a visible sign below the entrance sign that says: ‘Buy Tickets at the Booth” or “5€ Adult __€ kid fee” would communicate there’s a charge. I was surprised that after the booth the hike is only about 5 more minutes and the waterfall was much smaller than I expected, the platform was too small and crowded for the number of people. I enjoyed the free portion of the hike. Not sure the waterfall with a fee is worth it.