1. Named for its thousands of lakes, Ontario means "glittering waters" in the Iroquois language.
2. Most of Ontario is part of the ancient Canadian Shield, the largest mass of exposed Precambrian rock on Earth.
3. More than 6 million cubic feet of water pour over
Niagara Falls each minute.
4. Manitoulin Island, in Lake Huron, is the largest freshwater island in the world.
5. Ottawa's Rideau Canal becomes one of the world's longest skating rinks in winter.