Recommendations for 1 week beach holiday with teens

[1newname]

Budget 1k per person for all inclusive. I'm thinking Greece or Turkey. Teens are 15 and 18 so hoping for somewhere with activities. Preferably on the beach. Thanks!

3K total, for flight and accommodation?
When are you thinking of going?

Personally I prefer Greece. So may different islands to choose from.
First check to see which Greek/Turkish airports you can fly direct to..