정국숲 4호

Jungkook Forest No. 4, located in Ichon Hangang Park in Yongsan-gu, Seoul, is a fan memorial forest created by fans to commemorate Jungkook's 25th birthday (2021). It is planted with three hackberry trees and 600 spirea shrubs.

It is located on the west side of the Hangang Railroad Bridge within Ichon Hangang Park, and was established on October 26, 2021 with funds raised by about 300 fans. It is close to RM Forest No. 2 and is known as a popular spot that ARMYs visit together.