12 kilometers east of Ushuaia is the Playa Larga Natural and Cultural Reserve. The access to the trail that leads to Estancia Túnel is located at the end of the gravel road that borders the coast, where there is a beacon called "Escarpados". The path is well marked and during the first stretch there are no major difficulties. However, the forest terrain is winding and in some areas there are roots and gentle slopes, so it is necessary to wear appropriate footwear to avoid slipping. During some parts of the route, the path borders the coast of the Beagle Channel, which allows you to appreciate the particular ecosystem of this area, where cherry forests develop along with other species of trees such as the canelo (white flowers), the hardwood and the notro (red flowers). After walking through the forest for about 1 kilometer, you will arrive at an open field where you can rest and observe the excellent panoramic view of the Beagle Channel. Continuing down the path, you must cross a stream, walk along the coastline, and finally descend a gentle slope that leads to  Estancia Túnel. This historical site, besides developing the cattle activity, also worked as a sawmill from 1917 until its closure. Today you can see what is left of the estancia, as a memory of past times that still resists the tides of time in front of the Beagle Channel.