1. Lake Coatepeque is a volcanic crater lake located in western El Salvador, near the town of Santa Ana. It is considered one of the most beautiful lakes in the country due to its crystal-clear turquoise waters and stunning surroundings. The lake was formed over 50,000 years ago when a volcanic eruption caused the collapse of a huge caldera, creating the perfect conditions for the formation of a lake.

The lake is surrounded by lush green hills and volcanic peaks, providing a picturesque backdrop for visitors. It is a popular destination for both locals and tourists who come to enjoy its natural beauty and recreational activities such as swimming, boating, and fishing.

2. Lake Coatepeque does not have specific working hours as it is a natural attraction. However, it is accessible to visitors during daylight hours. There is no official phone number for the lake, but you can contact local tour agencies or tourist information centers in Santa Ana for more information.

3. There is no entrance fee to visit Lake Coatepeque. However, if you plan to engage in any activities such as swimming or boating, there may be rental fees for equipment. Transportation to the lake can be arranged through tour agencies or by renting a car, as there are no public buses that directly go to the lake. It is located approximately 30 minutes from Santa Ana, so it is recommended to have private transportation or hire a taxi to reach the lake.