The Earth Hour movement has been ongoing for over a decade. Originally initiated in 2007 in Sydney, to date, there are 130 countries to participate in this movement.  The event was held on 30 March 2019. The ligths in the whole property were switched off from 8.30 PM to 9.30 PM.  Earth Hour 2019 still with the consistency to raise awareness of the public to take actions in preserving nature and saving the mother earth. Participated by Sheraton Surabaya Hotel & Towers, Four Point by Sheraton Surabaya, Gandaria City & Blok M Plaza