Considered one of the jewels of Montreal and one of the greatest botanical gardens in the world , this park is also Canada's largest natural science complex and a top tourist attraction. It offers rich programs of events, exhibitions and activities throughout the year. The garden includes a total of 22,000 plant species, 10 exhibition greenhouses, and more than 20 gardens spread over 75 hectares. It is also an ideal place to enjoy the fresh air and unparalleled natural beauty .