Lanayru Mining Facility

is the third SS: in SS undefined. It seems to be a refinery or a factory of some kind for NaN Timeshift Stones.

Entrance to the SS:
The SS: is located within SS:, at first sunken beneath the large pool of SS: in the east frontier of the ancient SS:. It was the main industrial complex of an unnamed civilization or corporation that had died out. The SS: is full of SS: that has built up over time.

SS: initially proceeds to the location of the SS:, only to discover that the entrance is blocked. He then learns from an SS: that the SS: and the SS: are connected underground. To unveil the SS:, SS: proceeds to activate three power nodes placed strategically in the areas close to its entrance. Two power nodes are located inside caches, and one is hidden behind a bombable statue. In all cases, the nodes can only be activated when a SS: is activated nearby, and to do so SS: stabs at the center of each of them so he can proceed to rotate the pointer up to a certain angle. Each pointer has a symbol: a SS: bolt, a SS: droplet, and a SS:. When all three nodes are activated, SS: goes to the SS: that is in front of the SS:'s resting area, and proceeds to input its three pointers in an order that is indicated by the order of placement of the symbols, which in turn is based on the position of the original power nodes (this can be seen on the map, where the three symbols are shown). The SS: is then revealed, and SS: proceeds to enter.

Themes and Navigation
Compared to previous NaN Dungeons, SS: shows a significantly more advanced technology, such as artificial lights and luminous platforms and stairs. It also contains a large number of NaN Timeshift Stones that were mined from the earth, as well as many ruined and disused systems that come to life when the NaN Timeshift Stones are activated.

Inside, the SS: proves as difficult to navigate as outside, requiring plenty of SS: to dash across the various SS:-filled rooms. Also found inside the SS:'s walls are a number of minecarts and conveyor systems that have fallen into disrepair. The use of NaN Timeshift Stones allow SS: to restore these systems and help him trigger NaN Switchs in order to further proceed into the SS:. However, SS: must evade the rugged piles of unrefined minerals and electric barriers as he navigates the conveyor belts. NaN Stamina Fruits are occasionally dropped, allowing SS: to continue running across the belts. The past also contains several mechanical sentries, powered by ancient and relatively unknown technology, which SS: must defeat in order to proceed.

Large piles of softer SS: frequently appears alongside the dangerous SS:, and although they rarely impede movement, one of them blocking a door, the piles frequently hide NaN Switchs, NaN Treasures, or NaN Enemies. SS: must use the SS: to blow away the SS: and reveal what it hides. SS: will have to continue activating NaN Timeshift Stones and use the SS: as he travels deeper into the SS:. Several mechanical platforms must be moved by using the SS:, and some NaN Switchs are triggered in this fashion as well. NaN Timeshift Stones on moving minecarts have to be used at some points, meaning the young hero must move quickly and precisely to ensure that tasks they need to do in the small past area are completed.

Interestingly, this SS: doesn't have a SS:, and the SS: doesn't directly guard any quest reward other than a SS:. Instead, after SS: defeats it, he crosses a railroad that takes him to a scene at the SS: where he has to protect SS: and SS: from SS:'s reaches, and receives from his childhood friend the SS:.

Trivia

 * The SS: is Eiji Aonuma's favorite SS: in SS -.
 * The railroad leading to the SS: is linked to the SS: via a turntable, which is located underneath the SS: of the SS: room. Surrounding the turntable are several closed tunnels, which could lead to other parts of the SS:.
 * This is the only SS: in SS undefined which doesn't include a SS:.