Τhe busiest beach of the island is Agathopes Beach. It is located 14 km from Hermoupolis, in the settlement of Poseidonia. Agathopes beach stands out for the narrow strip of land that enters in the sea.
It is an organized beach with umbrellas, sun loungers, a lifeguard, toilets, showers and parking spaces. It is accredited with the Blue Flag. It has shallow waters. The visitor can find all the facilities such as cafes, restaurants, shops and accommodation.
Access is by taxi and car as well as the bus stops about 1 km from the coast. There is a ramp for disabled people, particular parking spots for the disabled, appropriate WC for the disabled, there are a floating wheelchair and a certain area provided with an umbrella for the disabled ones.