To LRDC: LRDC is at 3939 O'Hara St. (Note this street is actually called Bigelow in the area by the Wyndham; see if you can find the intersection of Bigelow + Bigelow on the map!). Wherever you are, walk up the hill (northish/away from the tall Cathedral of Learning, and then make a left, and walk until you get to the tall narrow, oddly titled building).
To University Club: The UC is between University Place and Thackeray Ave (both streets are just one block long). It can be entered from either side. It can be seen from the entrances of both hotels.
To Ivy (take stairs or elevators) and Conference B rooms (take elevators):
To LRDC from within University Club main floor: