The PR21 SMI trail, also known as Salto da Farinha - Podrão das Alminhas, is a 4.3-km out-and-back adventure in Achadinha, Azores, Portugal. This moderately challenging route offers a mix of stunning landscapes, waterfalls, and coastal views that will leave you in awe. While some areas can get muddy and slippery, the journey is well worth it for those willing to tackle the obstacles. Don't miss out on exploring this gem of a trail that promises a memorable hiking experience in the Azores!