A general view shows the beach Navagio following a rockfall, in the island of Zakynthos, Greece September 13, 2018.
It is one of the Ionian island's main attractions, in part because of the shipwreck on the shore and also because of its surrounding steep cliffs.
Their injuries were not life-threatening, fire brigade and coast guard officials said.
A cliff collapsed in Greece at a popular beach on the western island of Zakynthos, resulting in injuries, while coast guard officials were seeking to determine whether there were any people missing.
Josh O'Connell, 21, of Kilkenny, Ireland, who works for a tour company on Zante, said there were more than a dozen tourist boats in the bay and 400-500 people in the area.
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The brief video clips included below show the moment the rockfall began, with tons of rock breaking away from the cliff face and falling onto the crowded beach in Zante.
The coastguard later called off their search, saying everyone who had travelled to the beach on the tourist boats had been accounted for.
A couple of small boats overturned from the force of the fall that caused high waves, witnesses told authorities.
A Czech woman suffered back injuries and was transferred to hospital, a coast official said. The woman's husband and two children were hospitalized with minor injuries.