Shrine at entrance to levada tunnel (aqueduct) around Rabacal, Paul da Serra plateau, Madeira island, Atlantic Ocean, Portugal

shrine levada tunnel aqueduct rabacal madeira island atlantic ocean portugal hiking greenery nature entrance tranquility solitude landscape flora stone culture tradition pilgrimage spiritual pathway adventure outdoor tourism exploration equipment scenic beauty history travel religious trekking mountains ecology camaraderie visitors natural rustic architecture conservation landmarks trail wilderness serenity quiet ambient picturesque