Tourists walking near the square with Olive tree area in Porto, Portugal

porto portugal tourists olive grove mediterranean landscape natural beauty portuguese agriculture olive orchard serene environment scenic countryside mediterranean climate olive trees natural landscape agriculture farming peaceful ambiance agricultural tradition olive oil production lush greenery picturesque countryside fertile land traditional farming idyllic setting mediterranean flora cultivated land rural tranquility sustainable agriculture agricultural heritage rural charm pastoral beauty sustainable farming countryside vista natural cultivation agricultural scenery rural idyll harvest cultivation branch tree grove heritage tradition landscape square promenade view lawn path passage