The CyArk field mission to Ayutthaya took place in June 2017. The archaeological complex of Wat Phra Si Sanphet, the focus of the expedition, was impacted during a major flood event in 2011.The primary purpose of the trip was to assist UNESCO and the Fine Arts Department (FAD) of Thailand in mapping the site and providing detailed documentation surrounding the subsidence of the monuments. The documentation was conducted utilizing LiDAR and both aerial and terrestrial photogrammetry. Our work was supported through a generous grant from Seagate.