This is literally a temple on top of a mountain. Albeit a small mountain, more like a big hill the climb is still hard work. This is where most people come to enjoy the sunset views, so in the evening it gets very crowded.
Once you have climbed to the top of the mountain, take a look back and you are rewarded by superb views of Angkor Wat in the distance, just sitting in the jungle. Then you are faced with another climb, to the top level of the temple, more steep steps! But the view of the sunset is unrivalled, provided you get there early to book your space.