Exquisitely beautiful and ringed by highland forest, the lake has turquoise and cobalt hues from the bubbling sulphur deposits around its shores. To lose the crowds, follow the trail counterclockwise to the adjoining lake, Telaga Pengilon, and past holy Gua Semar, a meditation cave. Then for a lovely perspective of the lakes return to the main road via a narrow trail that leads around Telaga Pengilon and up a terraced hillside.