Hi Raff,
The general area around the Polaris World resorts has a whole host of bars, restaurants and places of interest for all members of the family to enjoy.
The plaza area in Los Alcazares has something for everyone and the Spanish festivals (of which there are very many) are occasions not to be missed.
The main cities of the province, Murcia and Cartagena are steeped in cultural history, both very obviously different, but both offering a fantastic array of fun.
The murican tourist board is a great place to start and the address is something like w w w carm es where you will find English pages.
if you want any further info, please feel free to ask ;)