Hi Panterlot,
'Christina' apartments have accomodation for up to six people. They have lovely views over the bay without a steep climb up an hill so your children if young won't have to walk so far but you will still get the amazing views. the apartments are just 2 minutes from the beach. I know the prices are very reasonable so google ' Christina apartments sans stefanos' and have a look and see what you think, the website has all the info that you need plus contact form to check availability etc, the website also shows lots of photo's both internally and externally of the apartments and the lovely views accross the bay. You also have use of the Fedra Mare hotel pool and bar if required and it is situated behind the Christina apartments, fedra Mare is only a very small hotel so there will be no noise and I believe Christina's brother runs the hotel so it is very family orientated.
Hope this helps, good luck.