1. Quai des États-Unis is a picturesque promenade in Nice that runs parallel to the Mediterranean Sea. It is named after the United States of America due to the important role they played in the liberty of the region during World War II. The promenade features walkways, bike paths and benches from where visitors can enjoy beautiful views of the sea and the surroundings. There are also several restaurants and cafes along the way where you can have a quick bite or a full meal while enjoying the sea breeze.

2. Quai des États-Unis is a public space that is open 24/7 and there is no admission fee. Their phone number is not available as it is a public place.

3. The promenade is easily accessible by foot, bike and by using public transportation. There are several bus stops nearby and multiple car parks in the vicinity. Visitors can take the tram or bus to the station of \"Massena\" to reach the quai.