A more thorough explanation:

A public pond, also known as a great pond, is a body of water that is larger than ten acres and is owned by the public. This means that anyone can use the pond for recreational activities such as fishing, swimming, and boating.

For example, in Maine and Massachusetts, there are many great ponds that are open to the public. These ponds are often popular destinations for locals and tourists alike, who enjoy spending time on the water.

The concept of public ownership of great ponds is important because it ensures that everyone has access to these natural resources. Without public ownership, these ponds could be bought up by private individuals or companies, limiting access for others.