My family and I went to Athens 1 year ago.It is amazing because I had missed my other family and we went to the sea and camping.
Tips: Take some important things, such as your earphones, and download songs to your phone ,see the weather forecast and get the right clothes,If it is a sunny, take your suncream and a book to read when you're bored,a camera to take photos of your family and the places. When you go to your destination, have with you a bottle of water.
My opinion is, if you're going on holiday, be away from the phones to relax. Do you like my tips? I believe you will like them and you wiil use them .