We went to Santa ponsa last year with our 12 year old son to the jutlandia apartments ( s/c)
and he loved it. They have entertainment on all day for kids e.g water polo, football, making
pizza's etc.
They also have entertaiment at night along with bingo for the adults (but plenty kids played this also)
You are not far form the beach about 5 min walk and you have marineland that you can take them to and also the pirate show is a must in magaluf.

thanks for the quick reply could you also tell me if there is anywhere in santa ponsa for the men and children to go fishing,ie any good rocks to sit on?

as far as i can remember there are some rocks that you can fish from and also at the marina
but not sure how good it is.