1. Lake Managua, also known as Lake Xolotlán, is the second largest lake in Nicaragua and is located near the capital city of Managua. It covers an area of approximately 1,042 square kilometers and is quite shallow, with a maximum depth of around 20 meters. The lake is surrounded by lush vegetation and is home to a variety of bird species, making it a popular destination for birdwatchers.

One interesting fact about Lake Managua is that it has a history of volcanic activity, with the Momotombo volcano looming in the distance. The lake itself was formed by a volcanic eruption thousands of years ago.

2. Unfortunately, there is no specific information available about any working hours or contact phone number for Lake Managua. It is recommended to visit during daylight hours for safety and better visibility.

3. There is no ticket information available for visiting Lake Managua, as it is a natural attraction that can be accessed freely. The lake is easily reachable by car or taxi from Managua, and there are also boat tours available for those who want to explore the lake further. Visitors should exercise caution and be mindful of their surroundings when visiting the lake.