Set your alarm for 4am or don't bother; the sunrise over the Langtang range hits harder than any city view. Book the Changu Narayan day hike to swap Kathmandu exhaust for quiet terraced farms and actual peace. Limit your stay to one night—the mountain air is elite, but the nightlife is nonexistent. Grab some Juju Dhau yogurt in Bhaktapur on your way back. Skip the generic bus tours and hire a local guide for the trail.
