Visited Mulhyanggi Arboretum in the first week of November. Would recommend to people in the area.

The timing was just right that most of the leaves had changed color but were still on the trees. Some trees still had small sections of green mixed with their fall colors. Got very lucky on our timing.

The park was clean and very well maintained. There are a couple public restrooms- cleaner than I have ever seen in a park in America.

Unfortunately I don't remember exactly what we paid. I know it was inexpensive. We drove a car there. There was a fee to park (I think it was 10,000 won). And there was a fee to enter the park (maybe 3,000 won per adult). Overall prices were nominal.

Two things to note- double check the park's closing time before going. The google listing was off by an hour and we showed up at closing time the first time we tried to visit. Second, as an American I am used to recycling bins and trash cans everywhere. I was surprised to see that public trash cans are somewhat hard to find in Korea. That in mind, dont expect to find them in this park either. So plan on taking out whatever you bring in- not a big deal just something different.