With added mobility, you can stay close to dive sites that would normally take days to reach. Additionally, you can move from site to site without packing and re-packing. The choices of diving locations and purposes are as numerous as the number of islands and ports in the ocean. If your goal is proximity, then Eastern U.S. divers might head for the Bahamas. If you don't mind a longer flight, there are many possibilities in the Pacific Islands, Southeast Asia, and the Australian and African coasts.
Tours often pick a special topic or a guide's favorite location.
A tour may dive among sunken World War II wrecks, through reefs teeming with sea life, among giant migrating plankton eaters, or off the coasts of isolated and pristine islands. Those of you looking for an extreme diving experience might even choose to cage-dive with great white sharks. Expert divers reading this are probably already packed. Most of the same tour companies also offer training classes and day trips that can get you ready for a liveaboard trip. A true beginner may want to just stick to the day trips, but a diver with only limited experience can find a tour that includes diving opportunities for all levels.