Skiathos is a traditional island serving mostly Greek cuisine and there is a lot of choice, with many restaurants and tavernas all over the island and a wider choice in Skiathos town. You will be sure to find something to suit your palette. The prices are very reasonable in a lot of the restaurants, they will suit most people's budgets, but there are restaurants that are overpriced so make sure you shop around a little before you decide on where to eat.
Thanks,
seo calgary