Home Travel Events 2021 December Conference on Sustainable Tourism in Asia (COSTA) 2021 COSTA 2021 will be held this year online, from Tokyo. Details Start Date:Monday, 6 December 2021 End Date:Tuesday, 7 December 2021 Email:.(JavaScript must be enabled to view this email address) Website:http://intesda.org/international-peace-tourism-symposium/ Venue Held online from Tokyo, Online