​Climate change related disasters such as erosion along riverine and coastal areas of the Mekong Delta in south and the Red River Delta in north are expected to be exacerbated by land subsidence, sea-level rise (SLR), and magnified typhoons Climate change related disasters such as erosion along riverine and coastal areas of the Mekong Delta in south and the Red River Delta in north are expected to be exacerbated by land subsidence, sea-level rise (SLR), and magnified typhoons. Adaptation to severe erosion is expected to respond to regional circumstances and the demands of local residents. Based on the expectations outlined above, for soft adaptation, attempts were made to conduct perception surveys of local residents, in addition to field surveys of erosion at riverside and coastal areas using an un-crewed aerial vehicle (UAV). Furthermore, for hard adaptation, a proposal is made to conduct pilot field tests at the coast for reinforcing coastal dykes using the combined technique of locally available materials with cost-saving eco-geosynthetics in addition to application of ICT. This paper explains the possibility of smart adaptation combining soft and hard adaptation to reduce severe coastal and riverine erosion in the Vietnamese deltas.