Hi Simon
As Wendy and lionel said there are numerous places on camposol, the ones id reccomend are Gateway to india on sector a (indian) and the Bulgarian Restaurant on Sector B opposite the steak out. (Try the slapsh kebab its for 2 people very nice).
If you head down to the port there are plenty of places to eat there for example The grand mundo chineses buffet this is siuated just before the port of mazarron coming from the direction of bolnuevo. There is also the Avenida 2 which can be found on the beach front in the port of mazarron its is about 150 metres down the beach front.
La caverna which is 10 minutes away. Come out of condado and take 1st exit at the roundabout towards murcia, take 2nd exit at roundabout when you reach the end of the motorway towards el palmar the restaurant is situated on the left hand side 2 miles down the road in a villiage called los ventarillos.
If you like tapas head down towrads bolneuvo when you enter the town on the right hand side just past monroes there is a place called elenas which sells some of the nest tapas in the area.
I recommend only one water park to my clients but that is in benidorm www.aqualandia.es however there is one in murcia which ive heard mixed reports on and one in vera.
Also if you are looking for some adreniline fun why not try terra mitica which is the large theme park (similar to thorpe park and alton towers) based just outside of benidorm it is very well signposted so cant be missed. heat towards alicant airport and keep goign till you see the signposts for benidorm terra mitica.
If you need anymore information dont hesitate to ask or clal me on 0034 652 548 826
Have fun
Rob