>>2144940Designated camping areas are what you'd expect: quiet, clean and expensive.
>>2146003 states it. Generally above the tree line. Here in Bern it's legal above 1600m I think. There are plenty mountain huts, check out SAC (Swiss alpine club) but with Corona around reservation is needed. Those huts are on far off places and/or high altitudes. Ticino and Graubünden have small uninhabited valleys.
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Pic rel, sunset on Lago Maggiore. Nice place to relax after a weekend in the snow.