You need to consider whether you want an apartment, interconnecting rooms, a suite of rooms or everyone in the same room. Do you require or want a kids club, crèche or babysitting service? You also need to check what baby equipment is available - cot, booster seat etc... will you be taking a pushchair? If so, do you want to request a ground floor room? Is there a separate children's pool? Is there space for the children to play?
First thing I look for is a kids pool with waterslides. Family room which is 1 room leading to another so only one door out to main hotel. Type of food available Kids club Distance from supermarket Kids entertainment In the beach