advice

Right booked to Icmeler 2 couples in early 50s have 2 spare flights, Do we take grandaughter Age 4 .half stays with Nanny and Grandad every weekend so used to us , parents ok about her coming (2 weeks )
Is this going to be too much hard work (shes a good child ) Will it be too hot or her (june/july). Dont know what to do, We like a drink on holiday we like the sun and late nights,Is this a good idea, Before she starts school in sept. Advice please 

