
People walk in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

A boat is seen near a gravel shoal the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

People walk in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

A woman covers herself under an umbrella on a gravel shoal in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

People walk on a gravel shoal in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

People enjoy warm weather on a gravel shoal in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)

Alluvial wood lies on a gravel shoal in the middle of the Danube river during the period of low water level near Esztergom, Hungary, August 19, 2018. (Photo/Agencies)