Greek officials say that at least 24 bodies were discovered on Tuesday near the Argyri Akti beach, in Mati, east of Athens.
The latest report brings the people that have died in huge fires raging out of control outside the Greek capital to at least 48.
According to reports, Red Cross volunteers and local government officials discovered the bodies near a popular beach-side taverna, 30 meters from the beach.
Speaking to the Greek media, Nikos Economopoulos, President of the Hellenic Red Cross, said that the victims were discovered bracing each other.
They were trying to find a way towards the relative safety of the sea.
Among the dead are children.
Dozens of cars were burned nearby.
Twenty deaths were confirmed by Greek government spokesperson Dimitris Tzanakopoulos in the early hours of Tuesday while four more were found dead in the sea at the area of Artemida in Attica by the Greek Coast guard a little later.
Another sixty-nine victims have been hospitalised.
Greek authorities have declared a state of emergency in the eastern and western parts of greater Athens, as fires fanned by gale-force winds raged through pine forests and seaside towns on either side of the Greek capital.
One fire was burning Monday northeast of Athens in the Penteli area, moving into the town of Rafina. In nearby Mati, the coast guard was sending a patrol boat to evacuate people trapped on a beach by the flames.
The second wildfire was ravaging mountainous pine forests 50 kilometers (31 miles) west of Athens. The blaze has created such thick smoke that the main highways between the Peloponnese and the Greek mainland have been shut down and an orange haze has descended on Athens.