"Kostas on the Beach" is open from Wednesday to Sunday , from around 1:30 pm through to the evening, and food and drink are available.
Beach Point is open from around 1:30 pm ish , every day, but food generally only available Friday/Saturday/Sunday evenings.
(Although if you ask for a lunchtime snack I am sure Christos would put something together for you)
Armourada will supply you an afternoon tipple and a small evening menu.
You may find Sharon at her pool bar. She would probably be working away but I'm sure a morning coffee or drink could be rustled up.
I believe that Kostas/Sophia Marvel will , with a days notice, prepare an evening delight for you.
Nothing I have found open , yet , in Ag.Giorgos, but Ag.Stehanos looks to be coming alive.
But "Night Owl" Afionas is open every evening from tonight (Friday) -You should also catch a lunchtime drink there as well.
Further afield is , of course, Mon Amour, Kavaddades for evening meals and "The School House" in Aspiotades (Before Agros)
Spoilt for chice , in Sidari , with "Bavias" , and "Chinatown" open weekends , plus a few others around the "Sea Monkey" end of Sidari.
(Bavias stuffed Bifteki - The best around , in my opinion)
The only other icing on the cake, for you, would be a nice warm weekend and with an 18deg start , this morning, fingers are crossed.
Cheers
Negg