Kemer Can, Bolu provincial director of the Bureau of Nature Protection and National Parks under the Ministry of Forestry and Water Affairs of Turkey checks the water cleanness in Abant National Park in Bolu province, Turkey on Oct. 20, 2016. Autumn, maybe the most beautiful and colorful season on earth, attracts people to go out to see the natural beauty before it is too cold in winter. For a country holding over 70 million population who are really fond of picnic, some national parks in Turkey are facing intense pressure from excessive tourists, and Turkish experts insist keeping natural beauty for future generations with multiple efforts. (Xinhua/Zou Le)
