Tequila
I am guessing you are a bit busy at the moment ...... if you will have a 7month old by July
But when you get a bit of time you will just need to browse this forum to find all you need to know about what I am sure will be a great holiday
But for starters
You are right opposit what must be one of the best restaurants for families in PP ..... it is called Trio .............. lovelly 3 course evening meals with wine or beer for about 17euros and childrens meals for just a few euros and the kids will be made very welcome.
Also try Little Italy where if you book an outside table and you are lucky, baby will fall asleep, older children will play on the beach right in front of you and you can have a nice relaxing time after your meal sitting having a drink watching the world go by
Of course there are lots more restaurants in PP catering for a wide variety of tastes and pockets , all of which you will find reviewed on these pages .
You have a charity shop just across the road which will be stocked with all the items your kids nead for the beach ..... just pay a few euros for them and then hand them back at the end of your stay ............. there is also a hire shop nearby in case you need any extras for the baby that you don't want to carry on the plane or your older kids want to hire pushbikes
As has already been said the beach is great ...... gently shelving sand and also if you walk up toward sthe Illa D'or it narrows more and has some great areas where the children can trawl with their fishing nets or snorkel and see star fish, squid, crabs, prawns and lots of small and larger fish if they are lucky
Have a great holiday