Visit Angkor Wat at sunrise is an optimal experience. Wake up early at around 4:30am prepare yourself and stuffs for the trip. Be sure that your battery is fully charged and your camera is with you too.
As the temple opening time is at 5:00am, you need to buy Angkor Wat ticket the day before at the official Angkor Wat Ticket booth. Your local hosted guide or driver shall be available for the job, and they will ensure a memorable Angkor Wat sunrise and the experience today of the boat trip on the shore of the lake.