A suggested planning framework. Exact transport, accommodation, permits, weather, opening hours and bookable inventory should be checked through TPSNepal and relevant authorities.
Day-by-day itinerary
Day 1: Kathmandu heritage core
Explore Kathmandu Durbar Square area, old bazaars and key temples.
Day 2: Patan and Bhaktapur
Full-day heritage circuit through two historic royal cities.
Day 3: Boudhanath, Pashupatinath and hill viewpoint
Combine major spiritual sites with a relaxed final viewpoint or cultural neighborhood.