https://www.gstc.org/?lang=ja
Global Sustainable Tourism Council (GSTC): Criteria, Standards, Certifications
Sep 8, 2024 - GSTC manages global standards for sustainable travel and tourism, and acts as the international accreditation body for sustainable tourism certification
sustainable tourismgstc criteriaglobalcouncilstandards
https://www.gstc.org/?lang=ko
Global Sustainable Tourism Council (GSTC): Criteria, Standards, Certifications
Jul 31, 2023 - GSTC manages global standards for sustainable travel and tourism, and acts as the international accreditation body for sustainable tourism certification
sustainable tourismgstc criteriaglobalcouncilstandards