Tweet by @VisitSheffield

One of #Sheffield’s most unique city experiences! 🏙️👷🔦

@Sheaf_Porter_RT’s Urban Caving tours take you along the city’s hidden rivers & into the Megatron tunnels below Sheffield Railway Station.

Tickets for their summer tours are on sale now! https://t.co/kiSRLH0nyF 🎟️,

— Welcome to Sheffield (@VisitSheffield) June 23, 2023 14:43