Workshop attendees will be responsible for arranging their own accommodations.
Hunter College has a listing of hotels near their campus here.

New York City is easily accessible by air. There are three major airports in the New York City area. The links below give information on each airport and also how to get from them into Manhattan
John F. Kennedy International Airport
Newark Liberty International Airport
Laguardia Airport

New York City is accessible by rail. Amtrak, New Jersey Transit and the Long Island Railroad all service Penn Station. The Metro-North Railroad services Grand Central Station. The links below give information on each line and the regions they service.
Amtrak
New Jersey Transit
Metro-North Railroad
Long Island Railroad

New York City is accessible by bus and car. Buses regularly service the Port Authority Bus Terminal and other destinations throughout Manhattan.
Port Authority Bus Terminal

Once in Manhattan, New York City has a very expansive and easy to use public transportation system. In addition, there are many "yellow cabs" available at a metered fare also.
Metropolitan Transit Authority (Subways/Buses)
NYC Taxi & Limousine Commission