Playas are small, round depressions in the surface of the ground. A playa lake is formed when rain fills this hole with water, creating a small lake. They look somewhat like the small watering holes that you tend to see often in nature shows, in case you need more description.
The playa and shore of Lake Hart, an endorheic desert lake in South Australia
Playa, also known as alkali flat or sabkha, is a dry lakebed, generally the shore of, or remnant of, an endorheic lake.
Large-sized playas are further excellent spots for pursuing land speed records, as the smoothness of the surface allows low-clearance vehicles to travel very fast without risk of disruption by surface irregularities, and the course of travel does not need to be too precise to avoid obstacles.
Playalakes are round hollows in the ground in the Southern High Plains of the United States.
The temporal nature of playalakes led to confusion on the part of early European explorers, some of whom described the region as a desert and others a land of millions of small lakes.
Playas are important because they store water in a part of the country that receives as little as twenty inches of rain a year and where there are no permanent rivers or streams.