The expensive bit of a school holiday is not always the attraction you booked three weeks ago.

Sometimes it is the steady drip of little payments that never made it into the plan.

A drink at the park.

A snack because lunch was apparently “hours ago”.

Parking.A last-minute train fare.

A craft activity nobody mentioned until you were standing beside it.

And, of course, the small plastic thing from the gift shop that becomes emotionally essential the moment you say no.

None of those costs looks dramatic on its own.

Across a week or two, they can quietly no, better very quickly turn into another bill.

That is the real school-holiday trap:

families often budget for the big day and forget the cost of simply getting through all the other days.

Start with the days you already know about

Before searching for cheap activities, write down what is definitely happening.

That might be:

• a paid attraction
• a holiday club
• a family event
• a trip to Ely, Huntingdon, Peterborough or one of the county’s market towns
• a day involving trains, buses or more fuel than usual
•  

Then put the whole cost beside it.

Not just the ticket.

Include travel, parking, food and anything else you already know you are likely to pay for.

A £12 entry ticket is not a £12 day out if getting there, feeding everyone and escaping the car park doubles it.

Then count the “nothing planned” days

This is where the budget gets sneaky.

Ten school-holiday days with an extra £5 spent here and there is £50.

At £8 a day, it is £80.

That does not mean every family will spend that much.

It just shows how quickly “it’s only a few quid” stops being only a few quid.

And those are usually the days nobody budgets for because technically you were “just going to the park”.

The five things that usually creep in

Food and drinks

The packed lunch sounded excellent at 8.30am.

By 2pm, somebody has eaten the emergency snack, somebody else is thirsty and you are now paying attraction prices for a bottle of water.

Take more than you think you need.

Children have an impressive ability to become starving within 11 minutes of saying they were full.

Parking

The attraction may advertise a lovely family ticket.

The car park may have different ideas.

Check parking before you leave home, not while sitting behind six other cars at the barrier.

Travel

A cheap day out can stop being cheap once you add return fares, fuel, buses or a taxi at one end.

Look at the whole journey.

The phrase “free entry” has done a lot of heavy lifting over the years.

Little extras

Face painting.

Rides.

Craft tables.

Ice creams.

Gift shops.

Set the extras budget before you arrive, when everyone is calm and nobody is clutching a glittery dragon with tears in their eyes.

Holiday clubs

For working parents, this can be the real heavyweight.

Do not just look at the daily rate.

Check food, registration, transport, early drop-off, late collection and any extra sessions.

A £30 day can become a £45 day remarkably fast.

Use two pots

This makes life much easier.

Have one pot for planned spending:

tickets, clubs, bookings, travel.

Then another for daily spending:

snacks, drinks, parking, little treats and the inevitable thing nobody predicted.

Give the daily pot one total for the whole holiday.

You do not have to spend the same amount every day.

A cheap Tuesday can fund a more expensive Saturday.

That is the point.

Not every day needs to be an event

Cambridgeshire County Council has previously promoted large numbers of family activities through its summer programmes, which is a useful reminder that school holidays do not have to mean major attractions every day.

Mix it up.

One booked day.

One park day.

One library visit.

One walk.

One “we are staying home and nobody is getting in the car” day.

Free is not always completely free because travel and food can still cost money.

But a week made entirely of ticketed entertainment is a very efficient way to turn six weeks into a financial endurance event.

The five-minute check before you book anything

Ask:

1. What do we pay before we leave?
2. What are we likely to buy once we get there?
3. What does the journey really cost?
4. Is parking extra?
5. How much are we allowing for treats?
6.  

Put the answers in your phone beside the booking.

That way, the price you remember is the actual price — not the optimistic one from the website.

The aim is not to remove every treat.

School holidays are supposed to contain ice cream, nonsense and the occasional thing you would never buy in November.

The trick is deciding where the money goes before the kiosk, the weather and a tired child decide for you.

Found a genuinely good low-cost day out in Cambridgeshire?

Tell us where you went and roughly what the whole day cost not just the ticket price.