Sigiriya is Sri Lanka’s single most compelling archaeological site and climbing it in the pre-dawn is the correct way to do it. The sequence runs from a headtorch approach past the ancient water gardens in the half-light, through the mirror wall, up the exposed final staircase, to a summit view as the light breaks across the entire Cultural Triangle. With a private guide who knows the site’s history in depth, this is three hours that changes how you think about Sri Lanka.