People enjoy their leisure time in a park in Istanbul, Turkey, April 12, 2021. (Xinhua/Xu Suhui)
People stroll in a park in Istanbul, Turkey, April 12, 2021. (Xinhua/Xu Suhui)
People stroll in a park in Istanbul, Turkey, April 12, 2021. (Xinhua/Xu Suhui)
People enjoy their leisure time in a park in Istanbul, Turkey, April 12, 2021. (Xinhua/Xu Suhui)