This paper summarizes the special session “Coastal Disaster Prevention -- Rehabilitation and Disaster Preventing City Against Tsunamis--. ” This session has been planned to understand the tsunami disasters and there rehabilitations. Presentations include the experiences in Okushiri Island which had severe damages in the 1993 Hokkaido Nanseioki Earthquake Tsunami and the 2004 Indian Ocean Tsunami. Also, countermeasures against huge tsunami disaster have been introduced by Miyagi Prefecture and Ministry of Land, Infrastructure and Transportations. After presentations, the countermeasures against tsunami disasters have been discussed. Throughout the presentations and discussions, many important issues have been pointed out.
