Descend the spiral staircase to the old miners’ tunnel in Levant Mine, Cornwall. You can retrace the miner’s steps along the underground route and brave children can now stand inside the old shaft, looking at the drop below their feet.
Climb down the spiral staircase into a secret, winding tunnel at the Old Battery on the Isle of Wight. This ex-military tunnel takes you to a hidden searchlight position, giving a dramatic bird’s eye view, directly onto the rocks below.
Wind your way through the tunnel in the rhododendrons at Sheringham Park, Norfolk, to the viewing tower. This route is especially striking when the plants flower in late May and early June. Some of the rhododendrons are thought to be over 100 years old and little tunnels have been created to allow access to them.
Doors are curious things. They have been known to lead to private rooms, hidden gardens and even other worlds. Can you find the door disguised as a bookcase? Sometimes they don’t lead to anything much at all, but it’s always great fun trying to spot them when they’re dressed like a chameleon.