The has issued a new advice to anyone heading to over the next few months - as holiday-goers begin the countdown to the summer break.

The Foreign, Commonwealth and Development Office that they needed to "take extra care when planning a hike or walk", especially if conditions are warmer than what they're used to.

In June last year, went missing while on holiday to the Greek island of Symi. He had gone on a walk and didn't return - with his body being found days later. Mosley's cause of death was ruled as likely being heatstroke, or "non-identified pathological cause".

In its new guidance, the to plan any walking routes beforehand and consider their limitations in distance and difficulty. It added: "Check weather forecasts and avoid hiking during the peak hours of sun; pack a hat, sunscreen and plenty of water."

It also suggested that travellers should wear appropriate footwear and take a map, GPS and fully charged phone, and always avoid hiking alone if possible.

"Make sure your insurance covers you for extra costs such as mountain rescue service and helicopter evacuation. If an accident happens or if you become lost, call 112 for the emergency services", the FCDO said.

For anyone hoping to camp in Greece or travel in a holiday-home, there are new restrictions you need to know. The country has introduced regulations prohibiting camping in tents and parking trailers, semi-trailers, motorhomes, and camper vans at certain spots.

These include places very popular with tourists including archaeological sites, seashores, beaches, edges of public forests and in general public areas. The FCDO said: "Ensure that you use licensed campsites to avoid fines."

If you're visiting Greece and choose to drive, you should keep your valuables out of sight and keep your car locked at all times. It is also important to always park in a well-lit area or secure car park and remain alert to car crime, the government explained.

For those taking public transport, be alert to thefts of passports, wallets, and handbags, as these are common on the metro, as well as in crowded tourist places. The FCDO advised: "Carry your valuables in different bags and pockets and keep a copy of your passport photo page somewhere safe."

Currently, Greek authorities have increased security at some tourist sites due to protests over the humanitarian crisis in Gaza. There is a heightened risk of these protests, especially in central Athens, the FCDO said.