Not only just making an online reservation to book the cruise line, the concept of online cruise reservation sites have been further modernised to cater to your online booking requirements. Most of the cruise lines embraced online cruise booking, years ago and now they have expanded their online options to include pre- reservation of the large number of onboard activities that they offer. Gone are the days of dialing your travel agent’s number to book an on board requirement now with the online cruise reservation websites you can log on to your cruise line’s site to map out the rest of the cruise or even can make a pre booking shore excursions, restaurant reservations or you can even book a spa treatment.