Choeung Ek Genocidal Center, also known as the Killing Fields, is a somber memorial site documenting the atrocities committed by the Khmer Rouge regime. Accessibility can be challenging due to uneven terrain, though efforts have been made to improve pathways. Visitors can explore the site solo with an audio guide (available in multiple languages) for a deeply personal experience, or opt for a guided tour for historical context and insights. There are no significant seasonal restrictions, but the rainy season (May-October) may affect outdoor exploration. The entrance fee is approximately $6, and a respectful visit typically lasts 1.5 to 3 hours. Dress modestly and be mindful of the site's sensitive nature.