| 14 October 2021 | Free Webinar: Underground Warfare: Trends, Challenges and Opportunities Register here |
| 15-17 October 2021 | Autumn Meeting & Visits, Northamptonshire Member booking is via self-service, non-members should book here |
| 01 November 2021 | Copy deadline for Subterranea 58 |
| 11 November 2021 | Free Webinar: The Military Geosciences and Subterranean Operations Register here |
| December 2021 | Subterranea 58 published |
| 09 December 2021 | Free Webinar: Underground London (Part 4) Register here |
| 15 January 2022 | Committee Meeting |
| 01 March 2022 | Copy deadline for Subterranea 59 |
| 12 March 2022 | Site Visit to Dumpy Level, Dover Castle Members-only event, booking required via self-service |
| April 2022 | Subterranea 59 published |
| 23 April 2022 | Spring Meeting & AGM, London |
