Hi Shajid –
<<” I was following the panoramic routes and found that spiez to Brig is covered by regio express. I was not aware of the tunnels on the route.”>>
There are two major tunnels on the two routes to cross the Alps there. One is the relatively shorter one on the original route from the late 1800’s.
It connects Kandersteg above Spiez in the Kandertal with Goppenstein on the the other side of the mountains, via a tunnel a few km long. This is the “Old Tunnel.” The tracks continue to the wall of the Rhone Valley at Hohtenn, where they turn and gradually descend the valley wall, on a scenic route with some spectacular bridges and a few very short tunnels to Brig. There, the tracks join the main line along the floor of the Rhone Valley (Rhonetal).
Since this is the south ramp of the line crossing the Alps there, it is known as the Südrampe in German. There is very nice hiking trail, closed in the Winter, that parallels those tracks. It is called the BLS Südrampe trail. BLS is “Bern-Lötschberg- Simplon” which is the original name of that trans-Alpine line. The scenery from the train is nice, but the scenery from the trail is better.
This link describes the trail:
http://www.myswissalps.com/fo rum/topic/bls-sudrampe-trail
Heading south, the train ascends through the Kandertal from Spiez to Kandersteg, on the north ramp of the crossing. That is a nice scenic ride. The tracks have to struggle to get up to Kandersteg. That leads to some interesting rail engineering. There is also a trail along those tracks, I have never walked it.
After the new tunnel was opened through the base of the mountains a few years ago, from Frutigen ( near Spiez) to Visp, using the new so-called “Lötschberg Basis Tunnel,” the train service on the old, upper route was re-established as a local service, stopping at each village that has a station. New cars with panoramic windows are used. The train is called “The Lötschberger.” It starts at Bern, makes a stop at Thun then Spiez, I recall, then begins the ascent, transit, and descent with many stops, finishing at Brig. And the reverse.
It takes about one hour longer to get to Brig or Visp over the top than on the new, fast, boring lower route.
In the timetable, which Lucas linked in his first reply, you will automatically be directed to the faster new route if you seek schedules from Spiez to Visp ( thence to Zermatt) or Spiez to Brig.
To see the old route using the Lötschberger train in the timetable, you must insert “Kandersteg” in the “via” box.
In the time table, if you expand the route information displayed in the timetable far enough, you will see the name Lötschberg Basis Tunnel or Route (for that option), and “Lötschberger” for the upper slower option.
Maps are useful. This one has details but shows the routes clearly at the right zoom level.
Look for the faint dotted lines which show the tunnels.
map.search.ch/?pos=619240,149128&z=64 &poi=zug
Slowpoke