Rotterdam (formerly known as Ryndam) Activities & Services

Cruise OnSale
a division of National Discount Cruise
5000 W Tilghman Street, Suite 305
Allentown, PA 18104

(800) 788-8108 Toll Free

Monday - Thursday: 9:30am - 9:00pm (EST)
Friday: 9:30am - 6:00pm (EST)
Saturday: 10:00am - 4:00pm (EST)
Sunday: Closed