Explore the UNESCO-style citadel and royal structures; the site usually opens 8:00am–5:30pm and gives deep historical context to Vietnam’s Nguyen dynasty.
Visit one of the royal tombs (Khai Dinh is ornate, Minh Mang is serene). Tombs typically open 8:00am–5:00pm and are best visited in the afternoon light.
For a refined meal choose the French-Vietnamese restaurant; otherwise enjoy classic Hue flavours at a local eatery (check reservations and opening hours).
Buy the Hoi An Heritage ticket (covers multiple sites) and wander the lantern-lit lanes, historic houses and Japanese Covered Bridge; the town is pedestrian-friendly and evenings are atmospheric.
Popular Hoi An restaurant offering regional dishes with a polished touch — good for trying Cao Lau and other local favourites; open evenings (reserve if possible).
If you choose Cu Chi (half-day tours generally run mornings 7:00–12:00), see the tunnel system and history up close; alternatively visit War Remnants Museum (open roughly 7:30am–11:30am & 1:30pm–5:00pm) for powerful exhibits on the war.
If you have onward travel/flight, ensure you reach the airport early; otherwise enjoy Saigon nightlife or an evening river cruise (check operating times in advance).