You can plan and choose a cruise through the Internet, if you put the word cruise in your usual search engine, many will appear websites that will help you locate, by price, date and itinerary your dream cruise.
Hay specialized or exclusive cruise servers like planetcruise, or todocrucero, or cruisesnet, the latter I like that it presents you with the option of group rates. You also have the option that online travel agencies dedicate a sub-portal or an exclusive tab for cruises, This is the case of logitravel or catch it, to name just a couple of them.
Apart from search engines you can find Comparators that before the same cruise, let's say the Canary Islands from July 7 to 14, they look for all the options. This is how the cruiser or cruisespromo works, the latter have the option of themed cruises, which is interesting. The example that I have given you is of a comparison by dates, but in reality you can make the comparison by ports of departure, companies, destination ...
All these channels have a customer service chat, it usually appears on the right side of the screen, where you can ask for help in real time to browse their prices, or to narrow down your searches. It is a good way to maintain our independence and anonymity while feeling heard and cared for.
To avoid losing customers and blur the fear of booking online search engines also offer telephone service, which facilitates the choice of cabin, or meal times. This is the reservation option that I would recommend to those who have never traveled on a cruise, so they can advise on everything.
In addition to these search engines and online travel agencies, specialized or not in cruises, Each shipping company has its own page through which you can make your cruise reservation. The price does not change much from other websites, but it does it is interesting to use them if you have loyalty points, since not all search engines support them. And the prices of the excursions can change.