This morning you will travel to Phnom Kulen, the sacred mountain that was the birthplace of the Khmer empire. It was here that Jayavarman II proclaimed independence from Java in 802, setting the stage for the glories of the Angkor-era that was to follow. This mountain plateau was the capital of the Khmer empire before it relocated south to Hariharalaya, known today as Roluos. Wat Pre Ang Thom is a focus of pilgrimage for Khmers during religious festivals and the large Reclining Buddha carved into a huge sandstone boulder here offers spectacular views across the lush jungle. Nearby are impressive riverbed rock carvings, including innumerable Lingas and representations of Shiva and Vishnu. There is a classic waterfall further downstream which is the perfect place to cool off after exploring and nearby is a small, jungle-clad temple called Prasat Krau Romeas. You will be served a picnic lunch before descend the plateau back to Siem Reap.