Named after the thousands of birds which are found here, The Cave of Swallows is the largest cave shaft in the world. Situated in San Louis Potosi, this 370-metre-deep, open-air shaft, is home to green parakeets and white-collared swifts which nest along its walls. Each day, the birds fly in concentric circles up the cave shaft before the flocks come spilling out of the hole into the jungle.
With BASE jumping having seen an increase in popularity over the last few years, the cave has recently become popular a popular spot amongst BASE jumpers looking to get an adrenaline rush. The extreme sport involves jumping into the cave while wearing a parachute or wingsuit and gliding down like a bird, before reaching an altitude where it becomes critical to open your parachute, leading to a safe landing at the bottom.
This daring adventure takes only 10 seconds to fall over 1,200 feet and reach the waters at the bottom of the cave, so it certainly isn’t a sport for the faint-hearted.