A Medieval Market is held in Mazarron Town on the 5th, 6th, 7th, 8th December - it´s normally lots of crafty type stalls, plus bars & food places. On the Sunday 7th there is a carnival down the main street - not sure of the exact timing for this, but I plan to be there for about 11ish.
And don´t forget that the 6th & the 8th are bank holidays. Consum, Camposol is closed both days, but is opening on Sunday morning until 1 or 2pm.
Have fun
Kathy
Viajes Dragontours, Camposol