Straits Times

Beachgoers splash the water on the coast to see the water light up from the dinoflagellates, at Changi Beach Park, on March 24, 2022. ST PHOTO: SAMUEL ANG.

He added that he would be going back over the next two to four days to play in the sea again. Mr Koh, who was at the beach from 8.30pm to about 10pm, said that the glow in the water got much brighter at 9.30pm, after the ferry service from the nearby Changi Ferry Terminal to Pulau Ubin stopped running. He said: "When my friends and I saw media reports on the blue waves in the middle of the week, we decided to come down because it looked interesting. When ST visited Changi Beach Park on Thursday night from 8pm to 11pm, the blue light in the waves got progressively stronger later in the night. Prof Case, who is principal investigator at Singapore Centre for Environmental Life Sciences Engineering and specialises in algal-bacteria interactions, said: "After the peak of the bloom, it usually takes around two to four days for it to completely dissipate. SINGAPORE - The blue glow that has been observed in waves at beaches in eastern Singapore over the past few nights would likely last for the next two to four days, said a marine microbiologist.