Have you tried Atlantic Horizons, the on-site booking agency at the Cristian Sur. You will find more details in our Cristian Sur thread ..... click here.
It may also be worth checking out the alternative complexes advertised in our Private Rentals forum, where you can make PM or e-mail contact directly with owners.
Thanks David, yes, have tried Richard & Gaynor (going out there in October)...but their fully booked - fingers crossed something maybe even in the same area will turn up..