| 05 July 2025 | Monsal Trail Meet-up Member booking is via self-service, non-members should book here |
| 05 July 2025 | Monsal Trail Day Trip |
| 01-04 August 2025 | World War I Tunnels of Northern France |
| May 2025 October 2025 | Channel Islands Occupation Society - Jersey - Open Days |
| May 2025 July 2025 | Portadown ROC Post Open Days |
| June 2025 September 2025 | Festung Guernsey - Open Days |
| 13-15 June 2025 | Heathfield Railway tunnel special opening / Cuckoo Line Gala |
| 21-22 June 2025 | Drop Redoubt Open Days, Dover |
| 28-29 June 2025 | NAMHO Conference - Conwy Valley |
| July 2025 August 2025 | Cuckfield ROC Post Open Days |
| 20-21 September 2025 | North Entrance Open Days, Western Heights, Dover |
| 26-28 September 2025 | Hidden Earth 2025 - Llangollen |
| 26-28 September 2025 | SFES (Société Française d'Etude des Souterrains) Congress in Vendeuvre-du-Poitou |
| 09-14 October 2025 | Forts around Antwerp and Liege (FSG trip) |
