The going eventually gets far less steep, but the uphill rise continues for several kilometres through the quiet, unspoiled forest before a mild downhill begins.

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The number of visitors that The Enchanted Forest draws into Perthshire at a time that might otherwise be pretty quiet in terms of tourists is simply magical.

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The feeding platform is not far into the jungle, where birds chatter, mosquitoes hum and cicadas buzz like chainsaws, and there is an expectant quiet as the guides call for the orangutans, who eventually come crashing through the forest.

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