Stuff to see and do when in Calasparra

Hi 

we arrived last staying in a family villa near to calasparra. We are a family of 4 with two kids age 8 and 10.

was wondering if anybody could shed any light on supermarkets in calasparra, market day, and is there a fiesta festival starting soon in the town? Don't want to miss anything good!! Heard about river rafting too if anybody knows about that?

cheers 

julene