Welcome back rainbows have been painted, one way signs point the way and there are marks on the floors showing where to stand at a two metre social distance.
At one school, St Illtyd's Catholic High in Cardiff, everyone entering the building will have their temperature taken.
This is the new look for schools that children and staff will come into on Monday when they re-open after being closed to the COVID-19 pandemic for 14 weeks.
Staff have been busy preparing schools to be as safe as they can, without looking like “emergency areas” said headteachers, who have been at pains to keep the environment as warm and welcoming as possible.
One head teacher, Armando di Finizio, at Cardiff's Eastern High, summed it up: "We're all set up and really pleased with how all our staff have risen to it, pulling out all the stops to make it work from both a safety and educational point of view."
Hand sanitising stations have been set up at key points in schools across Wales, hand washing facilities are adorned with safety signs and there are notices reminding everyone how their new “bubbles” work.
Pupils will come into schools in small groups of five to eight and stay in them all day. They will stay in one room with the teachers, not the children moving. “Bubbles” will have lunch and break times together.
Toys and equipment are labelled and separated for disinfecting between use by each child, desks and chairs are separated and in some schools marks have been put on desks, chairs, floors and outside play areas to show where people should stand at two metres distance.
Although staff have done all they can to keep a sense of normality schools will look and sound very different.
Only around one third of pupils will be in at any one time. Although Education Minister Kirsty Williams has said schools can open to all pupils, in phases, some are recommending their nursery children wait to until September to return.
When doors finally open on Monday morning there will be none of the usual hustle and bustle.
Children and teenagers won’t stream in and out at the start and end of the day or at playtime. Most of them won’t be in uniform and only a few canteens will serve hot food.
Close together working is gone for now with desks and chairs marked to keep everyone to metres apart.
While is alien to the whole way schools usually work, heads, teachers and support staff said they have prepared everything to be as colourful and normal as possible.
Many schools have been open as hubs for vulnerable and key workers’ children, but some of the buildings had been empty for weeks before staff returned to clean and get them ready.
Schools have drawn up rotas for who can come in and when, cleaners have been hired and re-opening guidance from the Welsh Government has been followed to keep everyone as safe as possible.
All equipment and toys that can't be easily cleaned, such as soft toys and dressing up clothes, have been stored, said Karen Brown, head of Cardiff's Millbank Primary.
"We've tried to maintain our caring ethos. We've put rainbow tape down to show children where they can sit, rather than showing where they can't sit.
"If schools follow the guidelines they can be one of the safest places you can be."
Dave Thomas, head St Illtyd's Catholic High School in Cardiff, said:"A lot of planning and preparation has been carried out, with support from the local authority, to make sure that the school is ready for reopening on Monday.
"There will be a maximum of eight pupils in a classroom and social distancing guidelines will be enforced throughout the school. We anticipate this to be a challenge, but I am confident that we have the support of parents and the pupils in making it happen. We have no choice. it must.
"There will be regular cleaning of the site, abundant hand sanitiser and wipes, optional face masks and everybody who enters the building will have their temperature taken.
"Like all schools we have tried to make the site as safe as possible and everything is aimed at easing the worries and concerns of pupils, parents, and staff.
"The last few months have not been easy for all concerned and we are delighted to be open and can`t wait to welcome everybody back."Video Loading Video Unavailable The video will start in8Cancel Play now
Huw Powell head of Mary Immaculate High, Wenvoe and Stephen Garthwaite, head of Ysgol y Grango, Wrexham said as many as 70% of their pupils have said they will come back this term.
“They want to return to some normality," said Mr Powell.
“We have signs marking two metre distancing and will have five pupils on five desks in each classroom. Teachers, not pupils will move rooms.
“We are doing full days. We bus in our youngsters and have arranged this with the local education authority safely.
“The day will run from 8.45am to 3.15pm and the canteen will serve hot food. For our youngsters it’s a wellbeing issue. People may not coma with food and our youngsters like the food and we run our own canteen.
“They won’t wear uniform so that parents can wash clothes more easily.
“We had timetabled in one week blocks for four weeks so when we were told by the LEA we could only open three weeks we just changed that so they come in three not four times.
“We are well prepared. By the nature of the job we have to be adaptable.”
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Stephen Garthwaite said he can't wait to see most of his 545 pupils to come in at some point over the next three weeks,
"We are all really pleased to be back and really looking forward to seeing pupils back. Every pupil will get three visits, if they want.
“There are new social distance signs and a one way system, but it is not obtrusive. The school looks as it did before but with new signs. It is COVID aware, but bright.
“We are really excited to be seeing pupils back. It will be great to see them again and give them a sense of purpose to help them progress."