Dolphins live in almost all of the seas of the world so you may be lucky enough to see them. Specialist operators do arrange boat trips to try to observe wild dolphins, and the responsible ones take pains to ensure this does not stress or harm the dolphins. Try searching the internet for “dolphin watch” or “see dolphin” for more information.
If you have been inspired to visit the underwater world, try visiting the website of the world’s largest diver training agency. You can search for a dive centre near you, or you can even start your course right away using eLearning: www.padi.com
If you’re already a diver, get some ideas here for the best places to see dolphins in the wild.