Incredible Changdeokgung Palace Secret Garden Reservation References. Web the palace was restored in 1611 and is designated as a unesco world cultural heritage site. The secret garden tour lasts for 90 minutes and includes various attractions such as the lotus pond and changdeokgung palace.

Admission fee, operating hours & seasons; ※there are 100 tickets available per tour. Best enjoyed during spring and autumn, this vibrant garden doubles as a walking trail, which takes approximately 2 hours to complete.