Your biggest difficulty planning a European cruise is narrowing down where you want to go. A Western Mediterranean itinerary usually includes stops in Barcelona and Monaco, as well as ports in Italy. Eastern Mediterranean cruises encompass eastern Italy, Croatia and Greece, and sometimes even Turkey and Israel. A Baltic Sea voyage brings you to Scandinavia and Russia; the Norwegian Fjords carry their own beauty. Don't forget about British Isles cruises, which allow you to visit castles in England, Scotland and London. For sun lovers, it's hard to beat the Canary Islands.
Once you get hooked on snorkeling and scuba diving on cruises, you begin to study itineraries with a view to finding the best spots to indulge your underwater passion. While the Caribbean is filled with opportunity, and an obvious first choice for enthusiasts of all levels of expertise, the rest of world truly can be your oyster if you pick the right ports. In areas where snorkeling and diving are popular pastimes, ships' excursions are usually offered, making your adventures easy to arrange. At other destinations, you might be on your own when it comes to booking a dive trip or finding a suitable snorkeling spot. This is especially true in areas with so many things to do that watersports rank low on the priority list of most passengers, as is often the case in European and Asian ports of call. There are a few cruise destinations with snorkeling and diving that may surprise you. Read on for a guide to finding the best spots around the world to get under the waves.