Settle into a centrally located hotel (Sukhumvit or Riverside) so transit to attractions and airport transfers are easy; rest and freshen up after your flight.
Classic Thai-style breakfast/brunch at On Lok Yun (old-school diner near Democracy Monument) or a specialty cafe in Sukhumvit for coffee and light Thai/Western dishes; open mornings ~7:00–14:00.
Walk the vibrant streets of Bangkok's Chinatown: gold shops, markets, and Chinese temples. Best done in daytime for shopping and photography; streets are open all day.
Head to the Chao Phraya riverside or your hotel's rooftop bar for a relaxed sunset view and to orient yourself; rooftop bars open from late afternoon into night (age restrictions apply).
Visit Thailand's most famous palace and the Temple of the Emerald Buddha; arrive early to avoid crowds and note the site typically opens 8:30–15:30 daily and enforces strict dress code.
See the giant reclining Buddha and consider an authentic Thai massage at the oldest massage school; Wat Pho is usually open 8:00–18:30, and the massage school operates similar hours.
Enjoy a memorable Thai dinner: Cabbages & Condoms offers good Thai food and a unique concept (open ~11:00–23:00), or choose a rooftop bar/restaurant for city views.
Take an early train (~1.5–2 hours) or private transfer to the Ayutthaya Historical Park to maximize daylight; trains depart regularly from Hualamphong station and private vans pick up from hotels.
Early breakfast and transfer to Don Mueang or Suvarnabhumi for a morning flight to Chiang Mai (1h15m flight); domestic flights leave frequently from Bangkok.
Visit nearby Bhubing Palace gardens or a local Hmong or Karen village to learn about hill-tribe culture; some sites have limited opening hours—check locally.
Spend a full day at a reputable sanctuary for rescued elephants — feed, bathe and learn about conservation; sanctuaries typically run 08:00–17:00 and require prior booking.
Back in Chiang Mai in the evening; choose a relaxed dinner like Khao Soi Nimman or Riverside for comfort after a long day; many restaurants open until 21:00–22:00.
Fly from Chiang Mai to Krabi (likely via a short connection in Bangkok; total travel time ~4–6 hours including connection) to begin the Andaman island leg.
Try an introductory rock-climbing session on famous limestone cliffs (book morning sessions ~9:00) or relax on the white sands; climbing operators open from 08:00–17:00.
Hike to the Railay viewpoint for sunset (allow ~30–45 minutes each way) or enjoy an early evening massage on the beach; viewpoint access is usually open daylight hours only.
Book a speedboat or ferry day trip to Phi Phi islands (depart ~7:00–8:00) to visit Maya Bay (subject to seasonal closures), snorkeling spots, and Phi Phi Don; typical tours return by late afternoon.
Take a morning ferry (or shared minivan + ferry) from Krabi/Ao Nang to Koh Lanta — travel time typically 2–3 hours depending on route — arrive midday to settle in.
If you missed parts of Chinatown earlier, revisit for food/snacks, or head to Asiatique riverfront night market (open ~17:00–23:00) for shopping and river views.
Visit the Erawan Shrine in central Bangkok for a quick cultural stop, then sample street snacks nearby; shrine is open daily and street vendors operate into the evening.
Enjoy a final dinner in Bangkok — choose a well-reviewed Thai fine-dining restaurant or an international option to celebrate the end of your trip; many fine-dining restaurants require reservations.