SinglesCruise is a travel website that specializes in cruise vacations for singles. Most cruises depart from the United States, Spain or the United Kingdom. The company has been in operation since 1991, and is the largest of its kind in the U.S.
They list upcoming cruises on the home page. Alternatively, you can search by destination, departure city, age-range, or departure date. Clicking on a "cruise" shows more information including: a summary of the cruise and the likely "age-range" of participants, the detailed itinerary with sea-time, as well as land-excursions and exact dates.
Availability can be viewed online and reservations made for some holidays. Others require telephone reservations.
They do say upfront they are not a matchmaking service. So don't expect that.
Cruises are designed to help single travelers mix and mingle with one-another, and entertainment provided includes "speed meetings", pool parties, karaoke parties, dances and theme nights for example. The company also provides an optional service called "room-mate matching", where you can be paired up with a travel partner (same sex and age if desired) for the duration of your vacation.
The community section has a user forum where prospective travelers can ask questions and read about other people's experiences. Travelers can also create their own photo albums where they can post photos of their holiday for others to see.