1. Cejar Lagoon, also known as Laguna Cejar, is a breathtaking natural wonder located in the Atacama Desert near San Pedro de Atacama in Chile. It is part of the Los Flamencos National Reserve and is a popular tourist attraction due to its unique characteristics.

The lagoon is known for its striking turquoise color, which is a result of the high concentration of salt and minerals in the water. The water is so dense with salt that it is almost impossible to sink, making it a popular spot for floating. Visitors can experience the buoyancy of the water by simply laying back and effortlessly floating on the surface.

Surrounding the lagoon are enormous salt flats, creating a stunning contrast against the blue water. The landscape here is truly mesmerizing, with the Andes mountains in the background adding to the beauty.

2. The working time of Cejar Lagoon may vary depending on the season and weather conditions. It is recommended to check with tour operators or local authorities for the most up-to-date information. Unfortunately, specific phone contact information for Cejar Lagoon is not readily available.

3. In order to visit Cejar Lagoon, visitors typically book a tour or hire a guide due to its remote location and limited public transportation options. The tour usually includes transportation from San Pedro de Atacama to the lagoon. It is essential to bring sunscreen, a hat, and sunglasses, as the sun can be intense in the Atacama Desert. Additionally, it is advisable to pack a swimsuit and towel for floating in the lagoon.