Just outside the train station in the Swiss town of Sion, a yellow signpost points hikers in two main directions with no fewer than 16 routes to choose from. As you cross the medieval downtown, keeping the Valère Basilica and the Tourbillon Castle on the right, aim for the Valaisanne Brewery. If you can resist the brewery's new tap room and its outdoor tables, be sure to duck as you scramble up a staircase and through the tunnel of holly and its busy bees and onto the Bisse de Clavau and 500 years of history.

Now you can relax. The

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