With an amazing altitude in the takeoff, this is one of the 4 best XC flying sites. This range is protected from the Alisios winds by the Central Range and is also out of reach of the sea breeze entering the valley (because of the takeoff altitude and distance to the sea).
So you may find strong thermal conditions (+3 to +6) with healthy cumulus forming with bases over 1400 m AGL most of the time). Thermals are wide and well formed, with rather strong cores.
There are several XC possibilities, as you can fly along the range either W or E. You can also try getting into the valley where some dust devils can be seen once in a while.
When cloudbase is high, the range can be crossed and flown on the N face, with an obvious chance to fly into the Valle de San Juan.