1. West Lake, also known as Ho Tay, is the largest freshwater lake in Hanoi, covering an area of approximately 500 hectares. The lake is surrounded by numerous interesting sights and attractions, including temples, pagodas, restaurants, and hotels. One of the most famous landmarks on West Lake is Tran Quoc Pagoda, which dates back to the 6th century and is considered one of the oldest pagodas in Vietnam. Visitors can also enjoy boat rides on the lake and explore the nearby villages and markets.

2. The lake itself is open to the public at all times, but specific attractions around the lake may have their own operating hours. For more information, it is recommended to contact the individual establishments directly. The phone numbers for some of the attractions around West Lake can be found online.

3. There is no entrance fee to visit West Lake itself, as it is a public area. However, some of the attractions around the lake may have their own entrance fees. Transportation to West Lake is easily accessible by taxi, motorbike, or public bus from various parts of Hanoi. Visitors can also rent a bicycle or take a leisurely stroll along the lake's promenade to explore the area.