Boys play seesaw at the Singapore Garden Festival in Singapore, on July 27, 2018. The 7th Singapore Garden Festival is held from July 27 to Aug. 3 at the Gardens by the Bay. (Xinhua/Then Chih Wey)

A visitor views the floral displays at the Singapore Garden Festival in Singapore, on July 27, 2018. The 7th Singapore Garden Festival is held from July 27 to Aug. 3 at the Gardens by the Bay. (Xinhua/Then Chih Wey) 

Visitors view the floral displays at the Singapore Garden Festival in Singapore, on July 27, 2018. The 7th Singapore Garden Festival is held from July 27 to Aug. 3 at the Gardens by the Bay. (Xinhua/Then Chih Wey)

A boy views the floral displays at the Singapore Garden Festival in Singapore, on July 27, 2018. The 7th Singapore Garden Festival is held from July 27 to Aug. 3 at the Gardens by the Bay. (Xinhua/Then Chih Wey)