"Nine Eagles"
Hi Louis,
You can walk in to the clubhouse area - or drive in and park - but access to the course itself is restricted by security guards.
There is no entrance fee.
With luck you might see the Little Curlew from the front left corner of the clubhouse (next to Thai Restaurant) or -as Mike says above- leave Terminal 2 at level 5 near the lost property office and take the elevated walkway towards the Marriot Hotel/Expo area.
You can look onto the course from the east end of the walkway too, and also from a grassy lane outside the chain link fence to the west of the Golf Course.
On the 25th December the Little Curlew was in the area near the 2nd Tee. We saw it closest through the fence. It was okay for a view, but not good for photography....
John