On the edge: Greece's future is uncertain / Reuters

Many concerned prospective holidaymakers have got in touch this week as Greece's financial crisis deepens.

Q. My wife and I are travelling to Zante on 30 June, Greece's euro deadline day. What is the worst that could happen while we are there regarding the euro? Ian Graves

A. Early July is a great time to be in the Ionian islands, with the sun shining, the Med warming and the August crowds yet to arrive. While the next 10 days will be stressful for the Greek people, the vast majority of tourists will be unaffected. Take enough euros in cash to cover your likely expenditure, just in case the taramasalata hits the fan while you are in Greece. At present there is no problem using debit cards at Greek ATMs. But it would be risky to rely on plastic, since there is a theoretical possibility that ATMs could run out of cash or be switched off. If Greece leaves the single currency in a hurry, traders will gladly accept euros.

Q. My family and I are booked to fly out to Corfu on 12 July. Will we see airlines simply refuse to fly there out of concerns of fuel, air-traffic control fees etc? Stuart Rolls

A. No. The airlines are looking forward to a profitable summer flying between the UK and Greece. In the event of aviation fuel shortages, airlines would simply "tanker" in fuel, ie load enough in Britain for the return trip. And given Greece's dependence on tourism – and earnings from overflying rights – it is most unlikely that air-traffic control would be hit.

Q. Do you think I will have to get a visa for my usual independent holiday in September 2015? Stuart Humphreys

A. No. While Greece may possibly exit the single currency suddenly, any departure from the EU would take a lot longer . Even then there is no likelihood that Europeans would be subject to visa rules.

Q. I have a villa holiday booked in Cyprus, but I am starting to worry about the Greek government defaulting on their debt and the effect on tourists.i

A. The economic effects of a Greek default would ripple through the EU, affecting all member countries to some extent, but holidaymakers are unlikely to be affected this summer. Even if some form of "contagion" spreads to Cyprus, carrying cash in euros is the only precaution you might want to consider.

Q. I am looking at booking a holiday to the Sani Resort in Greece for next year. Would you recommend waiting to book 2016 travel to Greece? Michaela Tomkins

A. Yes, because if Greece were to leave the euro then prices of many goods and services relative to sterling are likely to be significantly lower – some economists speculate about a 40 per cent devaluation. Therefore committing now to a rate in euros may mean you pay more than you need.

See bit.ly/GreekQA for further advice