As development alters Greek islands’ nature and culture, locals push back

ATHENS - With a deluge of foreign visitors fueling seemingly nonstop development on once pristine Greek islands, local residents and officials are beginning to fight back, moving to curb a wave of construction that has started to cause water shortages and is altering the islands' unique cultural identity.

Tourism is crucial in Greece, accounting for one-fifth of the country's economic output, and communities on many islands depend on it. But critics say the development has spiraled out of control in some areas, particularly on islands like Mykonos and Paros, where large-scale hotel complexes have mushroomed in recent years.

Teachers and other professionals in those and other Cycladic islands, a popular cluster in the Aegean Sea, have struggled to find affordable housing amid an influx of visitors and homebuyers, fueling growing protests by locals over the...