From the railway station at Rhäzüns the route takes us along the Alpstrasse up to the Rhäzünser Alp Sura. There are several village fountains along the way, ideal for topping up those water bottles with good, fresh Rhäzüns water in preparation for the ascent. As the unsurfaced track continuously winds its way upwards, it's a sweat-inducing ascent that calls on reserves of endurance. Once we have passed the culms da razén (Rhäzüns pasture huts), we deserve a short break at the Lag Miert mountain lake. From its idyllic high-plateau setting, the small lake radiates peace and tranquillity, strengthening our resolve before we tackle the final and somewhat flatter ascent to the Rhäzünser Unteralp. By the time we hear the welcome shrieks of the marmots we know we have reached the highest point on the tour, the Alp Sura (Rhäzünser Oberalp). We are amply rewarded for our efforts on the ascent with stunning panoramic views of the Vorab, the Tschingelhörner, the Ringelspitz and the Calanda, the Rhine valley around Chur, and the Safier and Domleschg mountains. The downhill run begins gently enough along the Alpstrasse to the Bonaduzer Alp il Bot. Then it really begins to gather pace at the branch-off after Scardanal before turning technical on the single trail after Salums and Prau Videun. It's a real treat, with a fast-flowing run back down to Rhäzüns.

From the railway station at Rhäzüns we soon reach the water's edge, our nostrils filling with the fresh air from the wetlands. The Rhäzünser Rheinauen are among the most best preserved wetland areas in Switzerland and are considered of national importance. We continue along the single trail as it rises and falls until we reach the flatter section along the Rhine dam after Rothenbrunnen. Along the Polenweg to Reichenau the sparse forest lets us glimpse wonderful views of these unique Rheinauen wetlands. Along this section of the route the Hinterrhein meanders from one side of the valley to the other. In Reichenau, the confluence of the Hinterrhein and Vorderrhein, we once again switch to the other side of the river and roll on towards Bonaduz. After a short, steep ascent up to the high plateau of Rhäzüns and Bonaduz the route continues past Sogn Gieri (St. Georg), which is well worth a stop. The Romanesque church, more than 1,000 years old, is famous beyond Switzerland's borders for its astonishing and beautifully preserved murals. After the rewarding visit of Sogn Gieri we happily cycle back to Rhäzüns.

The starting point of this mountain bike tour is the village of Bonaduz, which together with Rhäzüns forms an actual high plateau. Bonaduz is also the gateway to the Rhine Gorge Natural Monument.

After crossing the idyllic forest landscape near Bonaduz on well-maintained forest paths, an ascent follows on a road with little traffic, which leads to Sigl'Ault with great views. This is soon followed by a single trail that leads smoothly down to the panoramic road above the Rhine Gorge. The "Ruinaulta", as the gorge is called in Romansh, is one of the most magnificent and diverse landscapes in the Alps, which was formed by a landslide 10,000 years ago. You follow this road with a magnificent view down below, past the "Zault" viewing platform (photo stop recommended), before finally diving back into the forests and driving back to Bonaduz on extensive forest paths.

Along the right bank of the Rhine via Felsberg and Tamins, this tour first leads to Reichenau, where the confluence of the Vorderrhein and Hinterrhein is located, which can be seen impressively from the bridge. The tour continues picturesquely over the plateau of Bonaduz and Rhäzüns until you finally reach the Domleschg at Rothenbrunnen. Now follows a magnificent round tour through the southern-looking valley, which is characterized by rolling hills, orchards and numerous castles. A landscape that invites you to explore it on an e-bike. Again and again, the view sweeps over impressive castles, palaces and castle ruins - from Juvalt Castle near Rothenbrunnen to Hohen Rätien Castle near Sils, they characterize the Domleschg landscape. Lake Canova near Paspels invites you to take a refreshing dip in the water (bathing season from May to mid-October). The trail continues along the Polenweg with a view of the Rhäzünser Rheinauen, which are among the most intact floodplain landscapes in Switzerland and are of national importance. Behind the golf course of Domat/Ems with a view of the "Tumas" (the striking hills that originate from landslides and are under nature protection) then follows the last stretch back to the Alpine City of Chur.