North Wales Fire and Rescue Service say that evacuated residents have been told it's safe for them to return to the village of Pennal, in Gwynedd, as the level of risk from a breached dam has been "satisfactorily reduced."
A measured slow release of water has happened, to reduce the water to a safe level. A trench has now been created which will allow water to dissipate.
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Welcome to the Newsweek Quiz - where we'll be testing your knowledge from the last seven days of news here in Wales.
A 9pm watershed ban on adverts that market junk food to children should be introduced, Wales' Health Minister has said.