Angkor Wat itself is surrounded by a 650-foot-wide (200 m) moat that encompasses a perimeter of more than 3 miles (5 km). This moat is 13 feet deep (4 m) and would have helped stabilize the temple’s foundation, preventing groundwater from rising too high or falling too low.
Angkor Wat’s main entrance was to the west (a direction associated with Vishnu) across a stone causeway, with guardian lions marking the way. To the east of the temple was a second, more modest, entrance.