A pool that is used for swimming competitions in Rio turned all green overnight. The weird thing is that only yesterday it was crystal-blue. This has raised serious questions about how safe it can be to swim there and what could possibly cause it.
Whitney Travers, from Edinburgh created a rulebook for her boyfriend Kieran Lumsden before he went on a trip with his friends to Magaluf, Spain. Kieran shared it on Twitter and it get a lot of attention.