Olympic gold, diving ace Jack Laugher may have uncovered the great mystery of the green pool too.
Laugher – who secured a brilliant gold with Chris Mears in the men’s synchronised 3m springboard – reckons that the reason why the Olympic pool has turned from blue to bright green is actually rather simple.
The 21-year-old says that the ink from the plastic boards surrounding the pool has found its way into the water.
Laugher said: “We’ve got some big plastic boards that go into the water just for decoration and effect. But you can see on the waterline that they’re blue when below the waterline, and above the waterline it’s green.
“And we think maybe a load of ink has run into the pool potentially. It’s safe and the doctors have given it the all clear or whatever. And it’s different as well, you know, it’s another one of those added different conditions.”