If you're planning a trip to a new city, why not sip the sights from the water?

Set sail for a scenic U.S. tour with one of these nine suggestions and keep in mind that at some locations buying tickets online often nets you a 10 percent discount.

West Coast

Seattle, Wash.

Argosy Cruises
They offer one-hour harbor cruises and delicious dinner cruises.
800-642-7816 or 206-623-1445
www.argosycruises.com

San Francisco, Calif.

The Blue & Gold Fleet
See the Golden Gate, Alcatraz and more.
415-773-1188
www.blueandgoldfleet.com

San Diego, Calif.

San Diego SEALs Tour
It's a boat AND it's a bus. Try out this two-hour, amphibious sea and land adventure
619-298-8687
www.historictours.com/seals

Southern Tours

Corpus Christi, Texas

Fisherman's Wharf
After Memorial Day they offer a one-and-a-half hour tour and dolphin watch.
800-605-5448
www.wharfcat.com

New Orleans, La.

Steamboat Natchez
Tour New Orleans by steamboat or ask about their aquarium-to-zoo cruise.
504-586-8777
www.neworleanssteamboat.com

Miami, Fla.

Heritage Schooner Cruises, Inc.
Cruise Miami day or night in this schooner, inspired by 19th century Fla. cargo and passenger schooners. Boat has modern amenities that assure a comfortable cruise.
305-442-9697
www.heritageschooner.com/heritage.html

East Coast

Pittsburgh, Pa.

Gateway Clipper Boat Tour
Book a Mother's Day cruise and get a free family photo.
412-355-7980
www.gatewayclipper.com

Chicago, Ill.

Shoreline Sightseeing Boat Tours
One of their most popular boat tours is the architecture tour.
312-222-9328
www.chicagotours.com

New York, N.Y.

Circle Line Cruises
Choose from a short trip about the Statue of Liberty or longer cruises featuring more of the city.
212-563-3200
www.circleline.com/sightseeing.htm