text: Beyond the modern ferry port , a 350-metre ( 1,050-foot ) causeway connects Kuradase to Gevercin Adase ( Pigeon Island ) , which is topped by a 13th-century Byzantine castle and ringed with gardens and colourful cafe .
  
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  Kuradase wasn 't connected to Gevercin Adase before 1960 , when the causeway was built .