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The highlight of these remote hilltop 'caves' – more accurately a small series of caverns – is the ancient collection of petroglyphs in the top cave, thought to date back over 3000 years. From the car park near Ambalavayal it's a steep 20-minute walk up a winding road to the ticket window, then another steep climb up to the light-filled top chamber. On a clear day there are exceptional views out over the Wayanad district. The caves get crowded on weekends.