Two of Sri Lanka’s most defining UNESCO heritage sites in a single well-paced day. Sigiriya before the heat, with the 5th-century hydraulic water gardens, the cloud-maiden frescoes, the Mirror Wall and the summit view across the Cultural Triangle. Dambulla in the afternoon when the cave light is softest, with five rock-hewn shrines, 150 gilded Buddha statues and ceiling murals repainted for two thousand years.