Yellow Lake, also known as Asfar Lake, is a natural lake located near Al Ahsa Oasis in the Eastern Province of Saudi Arabia. It is characterized by its golden-yellow color, which is a result of sulfur and the reflection of sunlight on its surface. This seasonal lake is fed by underground springs and rainfall, and it is surrounded by sand dunes, palm trees, and the desert environment. It's a picturesque spot, especially during the winter season when the water level is higher and supports a variety of migratory birds and wildlife, making it a popular location for bird watching and nature photography. While the presence of water largely depends on rainfall, the lake is a representation of the natural beauty found in the Eastern Province of Saudi Arabia. The contrast between the desert landscape and the body of water creates a unique ecosystem. The area around Yellow Lake is relatively untouched by urban development, allowing visitors to enjoy the serenity and the natural landscape. However, it's recommended to visit with a guide or someone familiar with the area, as the terrain can be challenging to navigate.