After booking my ticket with Trazy, I was sent a confirmation email and a follow up email with my e-ticket barcode. You have to wait about 3 hours before you can use the ticket, but this fit my schedule well. It was easy and convenient to present this at the ticket office and I entered the garden with no problems.
The garden itself is beautiful and peaceful. The main theme appears to be bonsai, of which there were many different kinds around the garden. You can see that a lot of time and effort has and continues to go into maintaining this beautiful garden. As you walk around you'll notice several boards giving you information about how the plants are grown and cared for, as well as telling stories about visitors to the garden. One of the most impressive features of the garden is the two large koi ponds, and you can buy some fish food at a cost of just ₩1000 to feed them. There's also a small café, gift shop and exhibition hall, as well as a restaurant that serves coffee and hot food.
The garden is not particularly big so you can spend 20-30 minutes here. But if you take your time and enjoy the beauty and tranquility it has to offer, I'm sure you'll spend much more time here.
Definitely worth a visit!