The Greek Tunnelling Society, organizes between 12 – 18 May 2023 the World Tunnel Congress (WTC2023) in the city of Athens. The WTC is the premier annual event of the International Tunnelling Association (ITA-AITES) and is considered as the top attended tunnelling conference in the world with the participation of more than 2000 professionals. The congress will take place in the international conference center MEGARON which is considered as one of the finest and most technologically advanced conference venues in Europe. The theme of WTC2023 “EXPANDING UNDERGROUND”, will focus on the Knowledge and Passion that our industry offers to Make a Positive Impact on the World.