Scenic lakeside walk in central Hanoi and a short visit to Ngoc Son Temple on the tiny island; Ngoc Son usually open 8:00–5:00pm. Great first glimpse of city life and history.
Pay respects at the mausoleum and walk the surrounding gardens; mausoleum typically open mornings 8:00–11:00am and closed on Mondays & Fridays — check current schedule before visiting.
Excellent overview of Vietnam's ethnic groups with indoor and outdoor exhibits; generally open 8:30–5:30pm, closed sometimes Monday — check before you go.
Scenic 1–2 hour sampan boat ride under limestone karsts through rice fields; boat services generally operate 8:00am–5:00pm — Trang An is slightly larger and less crowded (Trang An ticket may include other sites).
Scenic 3–4 hour drive (including stops). Stop at Hai Van Pass viewpoint, Lang Co Bay for photos, and Marble Mountains for caves and views (Marble Mountains open ~7:00am–5:30pm).
Stroll the pedestrianized Old Town at dusk when lanterns light up the canals; many attractions open until evening and a small fee applies at some sites (Japanese Bridge ticketed).
Visit the UNESCO-listed temple complex with guided tours running in the morning (site open around 7:30am–4:30pm); best visited early to avoid heat and crowds.
Powerful exhibitions on Vietnam's recent history (museum open 7:30am–6:00pm) and a visit inside the historic Reunification Palace (open 8:00am–4:00pm).
Visit the vast tunnel network used during the war with guided tours and optional shooting range; site open ~7:00am–4:00pm — morning tours avoid heat and crowds.
Experience the largest floating market — boats trade fruit, food and goods from about 5:00–8:00am; go very early for best activity and light. Note: markets are busiest before 7:30am.
Drive back to Ho Chi Minh City (~3.5–4 hours) in time for evening departures or a final night in Saigon; confirm flight/train times before leaving Can Tho.