Amadeus Waterways offers free air for European river cruises in late 2007

You can choose among four 16-day "Magnificent Europe" river cruises from Amadeus Waterways this November and December that come complete with a free air offer from either New York City or Boston.

The cruises sail the Danube and Rhine while passing from Amsterdam to Budapest or vice versa, with prices starting at $3,299 per passenger in double occupancy. Departure dates from the U.S. are November 3 and 17 or December 22 and 27; on the latter you can spend Christmas or New Year's in Vienna, which lies en route.

If you fly out of any city besides New York or Boston, you'll have to do an air add-on to take advantage of this offer. You'll also need to pay in full at time of booking. Port charges are additional and this isn't combinable with other offers.

For more information or to book, click here or call 800-626-0126 or a travel agent.