"Breiavatnet" is the name of the lake where I have posted photos from over the last few days. And today you can see some of the teenage pupils from the nearby school who are out for a break in the fresh air out on the icy lake.
The city chief for roads, parks and sports facilities is the one who takes the final decision if a lake should be declared open to the public or not, after the thickness of the ice has been measured and investigated.
This lake has a 26 cm thick layer of ice (as measured today), according to the councils webpage.
But there are unsafe areas near some of the edges, so people are only allowed to go just where it is marked as safe.