Planning a holiday in Greece? Here's what you need to know

More than a million British holidaymakers will be heading to Greece this summer, and as the crisis unfolds many will naturally be feeling nervous about how it could affect them.

Greek banks are shut and there are restrictions on how much Greeks can withdraw from banks - known as capital controls.

But tourists' credit and bank cards issued abroad can be used at functioning cash machines freely - subject to queues and the amount of cash in them.

Here is the latest advice from travel experts.

How much cash should I bring?

Travel advice from the Foreign Office says that while banks are closed in Greece, tourists should make sure they take sufficient euros in cash "to cover the duration of your stay, emergencies, unforeseen circumstances and any unexpected delays".

"You should take appropriate security precautions against theft. There are currently no restrictions on taking unspent euros out of Greece at the end of your stay," it adds.

Andrew Brown, from Post Office Travel Money, says couples spend an average of around £500 in cash on a fortnight's holiday - on things like meals out, local trips and coffees. For a family, that figure is £700.

That does not include accommodation, and the advice is to contact your hotel, internet booking company or villa owner beforehand, to see whether it is possible to pay in advance in sterling.

Once there, visitors are advised to use safes and deposit boxes to store cash, and to split money between family members.

The Foreign Office also updated its travel advice following the recent vote rejecting the terms of an international bailout, saying that "the outcome of this referendum may lead to an increase in demonstrations across the country".

Is this cash covered by travel insurance?

Insurance group Aviva has doubled the cover for stolen money for people travelling to Greece having bought its travel insurance.

The standard amount of lost cash covered goes up to £600 from £300 per adult, so a couple would have £1,200 of cash protected.

The insurer said it wanted customers who were carrying more cash to Greece to be confident that they were covered if the money were lost or stolen.

Other insurers have followed suit, adding to the cash protection available but stressing the need for travellers to take care of their cash.

Travel association Abta has updated its advice, saying: "Holidaymakers should check how much cash their travel insurance policy covers them for and should take appropriate security precautions against theft such as using their hotel safe or splitting cash up between their party."

Will I be able to use credit or debit cards in restaurants and shops? If so, will there be a limit on how much I can spend?

The new limits on withdrawals from ATMs by those with Greek bank accounts do not apply to tourists, but there is concern that cash machines will be empty.

All cards currently accepted, such as MasterCard and Visa, will continue to work as normal.

Previous experience suggests that smaller shops and restaurants may be reluctant to accept credit and debit cards, preferring customers to pay in cash instead. That is because they might find it difficult to get hold of cash from their own accounts.

What about my car rental?

There have been reports of car rental providers asking for cash, rather than vouchers, although this has not been confirmed by the companies.

As with accommodation, it may be a good idea to check in advance.