White Sandy beach and 2 kids in May 2018 for £3.5k budget?

[HannsG]

Hi took the wife and two year old and four year old lads to Cyprus a few months ago. Loved it, stunning beaches such as Fig tree bay etc.

Will be in between work contracts from March 2018 and I have decided to take them away again for 7-10 nights.

Dont care for night life, would not mind a bit of civilization but we are a beach family. So we are really after some decent beaches.

Is Greece any good? Flying out of East Midlands.
Thanks