Hiking Highlight
Recommended by 31 out of 32 hikers
Location: Monteriggioni, Siena, Tuscany, Italy
2
01:56
6.93km
130m
5.0
(1)
4
02:37
9.53km
160m
4.8
(17)
110
06:22
23.5km
320m
The Granduca Tunnel, a hydraulic work from the 1700s near Monteriggioni is a 2.1 km long tunnel built to drain an unhealthy lake. The entrance is marked by a commemorative pyramid.
October 16, 2023
Impressive to imagine how this canal was built at the time of construction, it is around 2.8km long.
October 31, 2021
In the know? Log-in to add a tip for other adventurers!
Location: Monteriggioni, Siena, Tuscany, Italy
2
01:56
6.93km
130m
5.0
(1)
4
02:37
9.53km
160m
4.8
(17)
110
06:22
23.5km
320m