Skarkos
Excavations on Skarkos hill unearthed a prehistoric settlement, proving that Ios has been inhabited since the early Cycladic period. The architecture at Skarkos is preserved in places up to a height of almost 3 m, with most of the buildings evidently having 2 storeys, stone-paved floors and a sewage system. Numerous well-preserved pottery, tools and utensils made of metal, stone and bone were also discovered. In 2008, Ios was among 6 European locations out of 109 candidates awarded the European Union Cultural Heritage prize for its exceptional conservation efforts at the archaeological site of Skarkos
Party
If you have decided to go for ios, simply party. hora has plenty of bars and clubs to have fun all night long.
Watersports
In milopotas,yialos and maganari beach you can go diving, do wind-surfing, water-skiing or on blow up "donuts" behind speed boats.