Seven Wells Waterfalls, or Telaga Tujuh, is one of Langkawi's best natural sights. Water drops through a series of rock pools below Gunung Machinchang, with a lower viewing area near the base and a steep climb to the upper pools.
The upper section is the reward if you have the legs for the stairs: you can swim in the natural pools and look out over the forested slope. The rocks get slippery after rain, so wear shoes with grip and avoid rushing the descent.