You could see the viewing platform at the top of the gardens from our hotel room when it wasn't misty. Ham Rong, is the name, so I understand; in the centre of town. It costs 100,000 VND to get in. We stumbled across the entrance by accident, and weren't sure if we should pay to continue. Half a day later, we were delighted to have done so. I was amused at the difficulty tracking a butterfly can give. Photo also in my 'Beasties' gallery.