Classrooms have been closed for months because of coronavirus.
After more than three months away because of the coronavirus pandemic - it's back to school for thousands of pupils across Wales today.
Classrooms have been closed since March because of the Covid 19 lockdown.
There will be a phased approach, with staggered start-times for lessons and different breaks for each year group.
Tomorrow marks a key date in our plans to carefully begin lifting the coronavirus restrictions.— Welsh Government (@WelshGovernment) June 28, 2020
Thanks to your actions to #KeepWalesSafe, pupils and staff in Wales can go back to school.
We wish them all the best as they check in, catch up and prepare for summer and September. pic.twitter.com/CmaeoZ4TYa
Class sizes will also be smaller than usual with social distancing measures in place.
Only students on Anglesey, where there's a local outbreak, will miss out for now.
First Minister Mark Drakeford said: "We've worked very hard indeed with our trade union colleagues and our local education authorities.
"They had more than three weeks notice of our intention to reopen schools and a huge effort has gone on by teachers and non teaching staff to make sure that schools will be safe - safe for teachers, safe for students.
"I know of hundreds of conversations across Wales between parents and head teachers looking to see what has been put in place.
"We are confident we can do this safely and we are confident we are doing the right thing for the benefit of children."