União Internacional de Espeleologia (UIS) (3)
Editorial
- The Last Five Years and Plans for the Years Ahead
- The President’s Column: An Ending and a Beginning
- Welcome message of the 18th International Congress of Speleology
- The Cave Time Capsule 2091 Project: Call to all countries
- The Closing Months of the UIS International Year of Caves and Karst
- 36th Brazilian Congress of Speleology dedicated to the IYCK
- Country Delegations at the UIS Congresses: A Brief Retrospective
- Cave Data Sharing Guidelines – A new UIS Project
- Report of Activities 2018-2022 – Materials and Techniques Commission
- Report of Activities 2017-2022 – Cave Diving Commission
- New Caves Found by Remote Location of Caves
- Cave and Karst Legal Status Worldwide Assessment
- France Habe Prize: 2021 Winner
- EU Nature Protection Award 2021 goes to the German Speleological Federation
- Mladen Garašić, UIS Bureau Member, is doubly honored
- Speleology Present at UN Conferences in Geneve, Nairobi, and Stockholm
- Endangered Kenyan Coastal Karst Caves
- In memoriam: Robby Ko King Tjoen (Indonesia)
- In memoriam: Avirmed Erdenedalai (Mongolia)
- Calendar of Events
- UIS Bureau 2017/2021
- List of Member Nations
- Annual Contributions and Bank Account