The Sintra Mountains are a picturesque mountain range located in Portugal, near the town of Sintra. This UNESCO World Heritage site is known for its stunning landscapes, lush forests, and unique geological formations. The mountains rise to about 500 meters and are part of the larger Sintra-Cascais Natural Park, which offers various hiking trails and scenic viewpoints. The region is famous for its historical landmarks, including the Pena Palace and the Moorish Castle, both situated on the mountain slopes. The climate in the Sintra Mountains is mild and humid, contributing to the rich biodiversity and vibrant flora that attract nature lovers and tourists alike.