Hint

Intro

St.Galler Rheintal is an area often cosseted by the warm föhn wind. Much land has been won by the correction of the Alpenrhein waters in Rheintal. This has also created Europe’s largest freshwater delta with a wealth of birdlife.

Description

After the busy regional center of Buchs, you head towards the «smallest town in Switzerland», Werdenberg. It has a population of just 60. It also has the country’s oldest settlement of wooden buildings. Surrounded by luscious fields and by the Alvier Group and the Kreuzberg mountains you continue in the direction of Schlosswald. Except for the riverside forests, this is the only remaining forest in the St. Gallen Rhine Valley. One wonders if people ever considered what the aftermath of so much clearing might bring.

It feels terrific to look down from the embankment and see the 1320 km Rhine River. For bike riders steaming in the hot sun it is difficult to find a shady spot along the Alpine Rhine. Unlike the local wildlife for which an interconnected habitat system was created over a period of decades, consisting of grassland, small bodies of water and groves of wood. Wildlife movements across the river and the highway are made possible with «stepping stone biotopes» between the Rhine area and low-level moors on the valley floor and the highway bridge with visual barriers.

It is possible that the name Diepoldsau sounds familiar. What was it again? In 1923 the course of the Rhine was shortened with the so-called Diepoldsau breakthrough, creating the Old Rhine with its lovely loop near Diepoldsau. Today, it is divided into four sections that are connected by small creeks. Any excess water runs down a chute into the Diepoldsau channel below. Austria and Switzerland signed the International Rhine Regulation (IRR) treaty as early as 1892. Its main purpose is the flood control on approximately 30 km between the mouth of the Ill near Rüthi (St. Gallen) and the area leading up to Lake Constance.

You know the lake is close as soon as you see some kind of contraption in the sky: it’s a Zeppelin. Customs stations remind you that the neighbours are very close. Just a short while ago you peeked into the Principality of Liechtenstein and now it’s Austria on the other side of the Rhine. As soon as you leave the Rhine embankment and head for St. Margrethen it’s over with peace and tranquillity. The Rheinpark, currently the largest shopping centre in eastern Switzerland, is located directly on the highway.

An enjoyable tour includes the careful planning of the same. Please inform yourself in advance at the local information center about the route and weather conditions. Depending on the season and weather conditions, this route may be blocked or interrupted

Technical information

Show Technical information content
Start location
Buchs
Destination
St. Margrethen
Ascent
150 m
Descent
190 m
Distance
43 km
Distance on tarred ways
37 km
Distance on natural surface
6 km
Physical requirements
Medium
Theme
Along Water
More information https://schweizmobil.ch/en/cycling-in-switzerland/...

Route

Rhine Route

Andermatt - Basel
Learn more about # title #

All stages

Map

SwitzerlandMobility Map: This element is not accessible for disabled people.

Quick Facts

Route number

Stage: 4/9

Distance

43 km

Ascent

150 m

Travel information: Buchs AG

Current Offers

  • Aarau "The Omega Codex" Outdoor Escape Game Aarau

    This escape game takes you and your team on a journey across the city of Aarau. You'll search for... from CHF 14
    Offer details


    valid: 30.10.2026 - 29.10.2027

    Learn more about "The Omega Codex" Outdoor Escape Game Aarau
  • Aarau "Beat the groom" in Aarau: action-packed stag party

    With your Poltergruppe, you'll embark on a fun city rally through Aarau to say goodbye to the groom... from CHF 299
    Offer details


    valid: 19.11.2026 - 28.10.2027

    Learn more about "Beat the groom" in Aarau: action-packed stag party
  • Aarau Polterchallenge "Hangover - Girls Edition" hosted by Aarau

    The "Hangover Girls Edition" Polterchallenge in Aarau turns your polterabend into an interactive... from CHF 250
    Offer details


    valid: 06.11.2026 - 28.10.2027

    Learn more about Polterchallenge "Hangover - Girls Edition" hosted by Aarau
  • Aarau "Gentlemen Club" Escape Game for Bachelor Party in Aarau

    Solve the riddle with the groom and his friends about the missing bride. At the Gentlemen Club, you... from CHF 250
    Offer details


    valid: 09.11.2026 - 28.10.2027

    Learn more about "Gentlemen Club" Escape Game for Bachelor Party in Aarau
  • Schinznach-Bad Aquarena fun ticket in Bad Schinznach

    You can enjoy the Aquarena fun and swim in long water pools or drift along in the river pool.... from CHF 30
    Offer details


    valid: 30.10.2026 - 27.12.2026

    Learn more about Aquarena fun ticket in Bad Schinznach
  • Bözberg Lecture "first Swiss female doctor" at Jurapark Aargau

    Attend Urs Frei's lecture on Marie Heim-Vögtlin, Switzerland's first female doctor. Discover... from CHF 216
    Offer details


    valid: 02.11.2026 - 31.12.2026

    Learn more about Lecture "first Swiss female doctor" at Jurapark Aargau