Richard And Jo Demeester's photos with the keyword: tunnel

The trail to the Baiyang waterfall passes through 7 or 8 tunnels. The first one is the longest, at almost 400 metres.

While climbing over Son Pouses, we found the remains of buildings. Behind these, in the rocks, are large man made cavities in the rocks. We began exploring, and soon discovered there were long tunnels connecting them. The four of us spent a long time clambering through. I lost all concept of the depth of how far we went - dozens of metres at least - maybe a hundred or more. Son Pouses was a strategic point in the World War I - but my first researches indicate these placements may have been made by Austrian rather than Italian troops.

One of the many tunnels that twists and winds underneath Castillo de San Felipe de Barajas. This clever network includes dead ends and false passages to confuse attackers, and runs at multiple levels.

Shobak Castle, Jordan. This secret passage descends almost 400 steps, in pitch darkness, with many steps worn or missing. It starts in the castle, at the hilltop. Eventually, after walking or sliding down, listening to loose gravel bounce away from us in the darkness, we emerged at the base of the hill, a few hundred metres away from the walls. This secret passage could be used to bring supplies in to the castle during times of siege.

Tree roots hold together the roof structure of a passage leading under a Mayan pyramid in the ruins of Cobá.