The Urban Assembly New York Harbor School, also called the Harbor School, is a public high school located on Governors Island. This school is unique in New York City, which has 538 miles of waterfront, in that it attempts to relate every …The Urban Assembly New York Harbor School, also called the Harbor School, is a public high school located on Governors Island. This school is unique in New York City, which has 538 miles of waterfront, in that it attempts to relate every aspect of its curriculum to the water. The school is part of the Urban Assembly network of 21 college-prep schools in New York City.