Hikers on a path along levada (aqueduct) of Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal

hikers levada aqueduct green cauldron caldeirao verde madeira portugal path nature hiking landscape outdoors adventure vegetation lush trail exploration travel scenery woods trees flowing water wilderness scenic journey peaceful walking mountain breathtaking experience flora fauna sunlit rugged terrain tranquility beauty natural vibrant ecosystem sky clouds coast atlantic ocean season foliage