The November 2026 edition of Haeundae Arboretum's ‘Autumn Exploration: Fill Up in the Forest’ is listed for Saturdays between November 7 and 21 on Busan's official reservation portal. It is a family nature activity using grass, flowers and trees as a starting point for exploration and shared experiences. Individual session times and charges must be checked on the booking screen.

The official online application window is October 26 at 09:00 through November 3 at 18:00. The instructions strongly recommend registering as a Busan City website member first, because non-members may be unable to verify or cancel bookings. The opening time is controlled by Busan's server clock, and successful registration should display a completion confirmation.

Cancellation guidance is inconsistent on the same official page. The summary panel says five days before the visit, while the instructions below ask participants to cancel three days before. Confirm the operative deadline with the organizer rather than assuming either rule takes precedence. The official contact number is 051-888-7146. Check live places and any session changes directly before booking.