Long Island Directory Displaying listings from all locations. Use the fields below to filter listings for a particular country, city, or state. Start by selecting the top most region, the other fields will be automatically updated to show available locations. Use the Clear Filter button if you want to start over. Academic Camps Sort By: Business Name ↑ | ZIP Code ↑ (Reset)Sort By: Business Name ↑ ZIP Code ↑(Reset) Business Name: Portledge School Phone Number: 516-750-3100 Address: 355 Duck Pond Road, Locust Valley, NY View