Praia dos Três Irmãos – a hidden gem in Alvor. On the eastern side of the vast, 7-kilometer-long sandy beach of Alvor lies the sheltered bay of Praia dos Três Irmãos. Surrounded by impressive rock formations, it feels like a secret spot, perfect for escaping the hustle and bustle. Within walking distance from our hotel (max. 10 minutes), you arrive at this delightful beach. The beach is well-equipped with facilities and features a small, characteristic cave where children can play and explore to their heart's content.