
Grimes Graves
- Thetford
- Indoor and Outdoor
- Caves and Mines
At Grimes Graves today, visitors (10+) can descend 9 metres (30 ft) by ladder into one excavated shaft, an unforgettable experience: the only Neolith...

The Shell Grotto
- Margate
- Indoor
- Caves and Mines
Discover over 70 feet of atmospheric underground passageways and a cool rectangular chamber, first unearthed to the landowner's surprise in 1875, wit...