Tsingy de Bemaraha Strict Nature Reserve (Madagascar)

It is defined by needle-shaped limestone formations, above cliffs over the Manambolo river. The incredibly sharp limestone formations can cut through equipment and flesh quickly, which makes traversing them extremely difficult. The word "Tsingy" is procured from a local word meaning "the place where one cannot walk barefoot." This peculiar rock forest is not suitable for people who can easily become disoriented; only locals pass it safely. Its beauty is incomparable.