6) Diving pool turns green
Fans and swimmers alike were left scratching their heads before the Women's Synchronised 10m Platform Final at the Maria Lenk Aquatics Stadium in Rio when the diving pool turned a dark shade of green – a stark contrast to the blue swimming and water polo pool next to it.
Nobody knew why it had happened and it even sparked a debate on social media with everyone trying to understand why it was green. From urine to algae, a number of “theories” were posted online as even divers posted tweets fearing for their own health.
“The main reason a pool normally goes green is [a] lack of sanitation,” said an expert on pool care. Either the filtration system was unable to handle that capacity of water or had simply failed
However, the organisers confirmed that there was no risk to the athletes and the events were held with no delay.