Depart in the morning from your hotel with private transportation to Phnom Kulen National Park. Drive through wide open rice fields and scattered villages with traditional houses, before winding up the rocky road to the top of the mountain. Phnom Kulen is widely regarded as the birthplace of the ancient Khmer Empire. During the construction of the ancient temples, sandstones were brought from this sacred mountain to Angkor. Kulen is considered by Khmers to be the most sacred mountain in Cambodia. Visit the River of 1000 Lingas, divided into three ports for the Hindu trinity gods, and with a riverbed filled with thousands of unique, ancient carvings. Ascend to the summit of the hill to marvel at the Buddhist Pagoda and the large Reclining Buddha statue. Continue to the waterfalls of Kulen, pausing at two beautiful spots for a swim and perhaps a spot of lunch. At around 2:00 PM the tour comes to an end and the guide will transfer you back to your hotel. Alternatively, you have the option to stop at Banteay Srei temple, known as the Women's Citadel and built of majestic red sandstone. A valid Angkor day pass is required for entry, costing around $37 per person.