China sees 230 mln domestic tourist trips during May Day holidaySwans pictured at lake in ShandongPeople visit ancient city of Patara in TurkeyTraditional villages with local characteristics built to develop rural tourism in HebeiIn pics: natural landscapes in AfricaAnimals eat Halloween pumpkins in Zoo Budapest and Botanical GardenPattern of dragon robe seen in cole flower field in E China's NanjingPeach flowers in full blossom at Mutianyu Great WallTraditional villages with local characteristics built to develop rural tourism in HebeiRainbow seen at Hukou Waterfall scenic spot in China's Shaanxi