Sunset beach is located on the exit from Skala Marion towards Prinos.
This is cute, sandy, organized beach with enough sunbeds and umbrellas for renting, and showers or changing cabins. 
There is sand on the shore as well as in the water, depth is gradual, so it is great for swimmers, but also for children.  Most of the beach is free for all of those with own umbrellas and towels.
Beach has great bar with relaxing and pleasant music.

If you order drinks in bar, sunbeds and umbrellas are free for use.
On this beach I have tried my first mix of fruit juices in a glass full of crushed ice, and I loved it. Greeks, and possibly Italians call this "granita".
Ideal beverage for summer heat!
Beach is wide, so there is enough space for playing tennis, volleyball, or whatever you like.
From the center of Skala Marion and excellent Armeno taverna the distance is around 1km.