A beautiful hike up the hill to see long stone dragon and a good view of the surrounding area. There are two peaks, the one without the dragon offer a great view without the crowd. Entrance ticket is 100,000VND per person.
There are 3-4 illegal parking collectors en route to the ticket entrance, so you need quite some determination to avoid then all (and park for free after ticket entrance) as they try very hard to stop you. I assume these operations are run by nearby villagers, collecting 10,000VND per bicycle.