In a devastating turn of events, the search operations for three missing tourists on two Greek islands have intensified following the discovery of two deceased holidaymakers on separate islands over the weekend. The rescue teams, aided by sniffer dogs, helicopters, and drones, have been tirelessly scouring the Cycladic islands of Sikinos and Amorgos for two missing French women and an American man who vanished last week.

Describing the search effort as "relentless," the mayor of Sikinos, Vassilis Marakis, expressed that emergency services have been diligently focusing on rocky terrains where the two female hikers might have strayed. Despite their unwavering efforts, the difficult and treacherous terrain has hindered their progress, leaving the authorities empty-handed for now.

Within a span of nine days, six holidaymakers, including British TV presenter and nutritionist Michael Mosley, have either been found dead or gone missing on different Greek islands. Reports suggest that all of them embarked on hiking expeditions amidst unusually high temperatures.

Mosley, aged 67, is believed to have tragically lost his life shortly after getting lost and scaling a rocky peninsula on Symi, a remote island in the Aegean. His lifeless body was discovered on June 9th, just meters away from a seaside restaurant resort, five days after his wife reported him missing.

Search teams in Greece confirmed on Saturday that the body of a 74-year-old Dutchman, missing for nearly a week, was located in a gorge on the eastern Aegean island of Samos, close to the Turkish coast. The elderly man had also embarked on a hike during scorching weather conditions.

On Sunday, it was announced that a 70-year-old American tourist, missing since Thursday, was found dead on a remote beach on the isle of Mathraki, west of Corfu. Another holidaymaker made the grim discovery, after which the search operation was temporarily halted due to strong winds preventing emergency services from reaching the island.

Meanwhile, the search for Albert Calibet, a retired Los Angeles police officer, continued on Amorgos, the easternmost island in the Cyclades chain. Calibet, a regular visitor to the island, went missing while on a solo four-hour hike in scorching temperatures that reached a staggering 40°C.

The mayor of Sikinos indicated that the two French tourists, aged 73 and 64, embarked on their ill-fated hike during a period of "abnormally hot" weather for June. While expressing concern and worry, he also mentioned the increased patrolling of the island's coast by the coastguard.

The search operations are being coordinated from Syros, the administrative hub of the Aegean Sea. With mounting concern, questions have been raised about whether foreign visitors to Greece are adequately informed about the risks associated with overexertion in extreme temperatures. Greece, as a frontline country in the climate emergency, has experienced its hottest June ever.

However, as the mayor pointed out, it is challenging to control individuals' choices to take walks or enforce them to stay indoors. It is hoped that tourists will exercise caution and make informed decisions to ensure their safety during such intense heatwaves while on holiday.