1. The Charles River is a picturesque river located in Cambridge, Massachusetts, that runs parallel to the city’s famous Harvard University. The river is a popular spot for outdoor activities such as kayaking, sailing, and walking along the riverbanks. It is also home to several important historical landmarks, including the famous Longfellow Bridge, which offers stunning views of the Boston skyline.

2. The Charles River is open to the public 24/7, as it is a natural waterway. There is no specific phone number for the river itself, as it is a natural landmark.

3. There is no ticket information for visiting the Charles River, as it is a natural attraction that is free to access. Transportation options to reach the river include walking, biking, or taking public transportation such as buses or trains to nearby stations. There are also several boat tours available for a fee that offer a unique perspective of the river and its surroundings.