Take AREX express or airport limousine / taxi to central Seoul (Myeongdong / Hongdae / Gangnam depending on hotel) for fastest access to next-day pickups.
Pre-book a full-day DMZ tour (Imjingak, 3rd Tunnel, Dora Observatory, Dorasan Station). Tours require passport and advance reservation; the standard public tour lasts ~6–7 hours.
Ferry to Nami Island to walk the iconic tree-lined paths and scenic spots; especially beautiful in late autumn colors. Ferries run from early morning (approx 08:30) to late afternoon.
Explore this beautifully landscaped garden; in November the garden may have early evening lighting (check seasonal illumination hours), it’s open ~08:30–18:00 (lighting events later).
Visit The Bay 101 for skyline photos; if you mean the 'Sky Capsule' experience or observation spots, aim for late afternoon for sunset light (confirm attraction name/hours locally).
Explore Gamcheon’s colorful hillside alleyways, murals and cafés (shops tend to be open ~10:00–18:00). Watch your step in narrow lanes and support local artisans.
Walk Insadong’s traditional craft shops and galleries, then wander the nearby Bukchon Hanok Village for traditional architecture — stores ~10:00–19:00.
Visit the main royal palace (open ~09:00–17:00; closed on Tuesdays) to view halls and the changing of the guard. Arrive early for smaller crowds and photos.
Travel to Suwon (approx 1 hour by train or car) to visit cultural sites and the library; Suwon Hwaseong Fortress is a highlight if you want the fortress experience.