I wanted to visit this place years ago, 2015?, but the local bus line to get there was horrible. I ended up in the town of Ulsan which is easy enough, waiting for the local bus...well the display was digital (new and flashy back in the days) and the bus line wasn't shown. Eventually it did but the display was showing the time to arrive at this bus stop which is another hour...omg. Well, crazy as it is, a French guy and his Korean gf walked by so I asked about the bus and she checked her app to know it's another hour and gave me info on the return. Well, this wasn't good. TLDR don't go there with public transportation unless you have heaps of time or know the actual times ... best would be with Korean knowledge. Anyhow, I see most people taking a taxi there but I just went to Busan to cool off which Gamcheon Culture Village helping a lot there.

A few years later I drove around Korea by myself and voila I made it to Ulsan. I obviously went to the stream and the first thing you want to do is visit the museum. It was quite busy with school children on that day so my impressions are a bit mixed. It's definitely a must-see though. I then drove further out (it's walkable) and parked just in front of the stream. It's not really official parking and only a few will park but I was the only one visiting and I'm quite sure you will be too. Also my luck was very bright because there was a lady giving out info on a voluntary basis. I forget why but her English was great. She told me sooo much about the are, the petroglyphs and the story about the king taking his ...girlfriend, or wife or whatever, the stream to view them. It had a lot of meaning when she explained it. I was eager to view the petroglyphs but I cannot say that viewing the petroglyphs in Ireland are really awesome - because it's really missing backstory and meaning. You can see rock art in many places but it's made special here. So I let my review sit for a long time because a) I don't know where my pics are of I even took any outdoors and b) it feels quite personal to me. Now that it's getting ready to be inscribed I do want to say it is worthy and you should try to put this on a Korea itinerary that goes beyond Seoul (most people just do the capital and MAYBE also Busan on a side trip but the smaller towns get less love for sure).

It's only a shame that transportation to the site is quite difficult. I once had a picture of the bus times which I took back at the main station but it's probably outdated anyway and there was decent apps that can do this for you better anyway.