Hi Ray,
I walked the course 3 weeks ago with Tony (balsicas), you're right, its looking good with many hazards awaiting those that do not keep on the fairways. Loads of lateral water, waterfalls, lakes, Oh! and some fairways in between the desert areas (did you see the pyramids on the 3rd hole?).
I didn't see the notice at the site hut, but is it 'Sierra golf' party, or 'Sierra Golf Course' party? There is no way the course will open by then. Although the range should open shortly, I think that we will be lucky to see 9 holes open by September, none of the green have grass, at the moment. Hope I'm wrong.
John B.