Aruna Iyengar has more.

Many visitors to Greece come for this.

Remote, unspoiled beaches.

But Greek officials say some holidaymakers aren't prepared for high temperatures, particularly if they go walking in the sun.

More off-road, less populated areas.

We prefer this than busy beaches that are too easily accessed.

It's dangerous to walk in the sun, but we are young, so we keep ourselves safe with water and sunscreen.

This latest Greek heatwave has been deadly.

An American tourist was reportedly found dead on Mathraki Island on Sunday.

And a Dutch holidaymaker was found dead on Samos over the weekend.

This followed the recent death of British TV presenter Dr Michael Moseley on the island of Simi.

Winds from North Africa have been pushing up temperatures.

In Crete, you can see the heat rising off the beach.

There's a haze of dust across the Athens skyline.

The ancient Parthenon Temple was temporarily shut to tourists after temperatures hit 42 degrees.

Severe heat is also affecting Cyprus.

Schools have closed.

And wildfires have broken out in Paphos.

People had to be evacuated to hotels as fires threatened their homes.

Turkey's also battling with temperatures over 40 degrees.

Authorities in Istanbul have issued warnings.

People are doing what they can to stay cool.

Travelers to the region are being told to wear hats, carry water and avoid strenuous exercise in high temperatures.

Forecasters say this is just a preview of more extreme weather still to come this summer.

Aruna Iyengar, BBC News.