Thailand has a remarkable history of maritime connections to diverse regions of Asia and beyond. Well beyond coastal port polities these connections have extended considerably upriver, with connections along the country’s navigable waterways have shaped a map of the world of maritime Asia that extends well beyond those of dominant contemporary geographic imaginations. Today however, many of these historic riparian communities and coastal settlements face dire threats from severe flooding and coastal erosion accelerated by climate change. This increased vulnerability poses drastic threats to the material culture record of the country’s rich history.