I mainly want to give an update about the accessability of the WHS area. In Flims, the old cable cars are replaced by a new system called "Flims Express", which will serve the Foppa-Naraus-Fil de Cassons line. However, the new lift is not expected to be operational before the end of 2024, and the old cable cars are already out of service. This means that the cable car tour described in some of the other reviews is no longer available. You can still hike the Foppa-Fil de Cassons route, but this means hiking all the way up from Flims and down again. To at least get a a good view of the main "arena" area with the Tschingelhörner, I opted for the alternative route from Flims, which is going up by the second main cable car line "ArenaExpress" up to Nagens. The WHS area can't be seen from there, but there is a rather short (30min) hiking trail over the mountain hump to the end station of the "Grauberg" lift (which was also not running). From there, you have a pretty good view over the main arena area (see the picture). However, you are technically still only at the border of the core zone. To be sure, you have to go down the hiking trail to the "Untere Segnesboden", the lower plain below the Segnes pass. Although it was a nice sunny September day, the whole area was already covered in ice and snow. Considering my flimsy shoes and equipment, I hiked back to Nagens and had to be satisfied with the view alone.
So, the WHS area is currently hard to reach for none-hikers. However, I had a look at the maps and discovered that the core zone is much bigger than expected, expecially in the valley leading to Elm. There is a site called "Lochsite" where the core zone reaches down almost to the bottom of the valley, and there seems to be a geological trail there. Might be worth checking out if high altitude hiking isn't your cup of tea.
Visited in Spetember 2023.
Importance 3/5 Beauty 4/5 Uniqueness 3/5 Environment 5/5 Experience 3/5