Eurotunnel's post code is CT18 8XX, for Europe use the Latitude and Longitude in the SatNav
Here are the full details for you..
GPS coordinates
Latitude: 51:05:44N (51.09559)
Longitude: 1:07:19E (1.12207)
Address:
Eurotunnel, UK Terminal, Ashford Road, FOLKESTONE, CT18 8XX
And on the other side in France
GPS coordinates
Latitude: 50:56:21N (50.93906)
Longitude: 1:48:52E (1.81446)
Address:
Eurotunnel, 62231 Coquelles
Hotel New York
GPS coordinates
Latitude: 48.870776
Longitude: 2.787388
Hotel New York, Avenue René Goscinny, 77777 Marne-la-Vallee, Paris