Just an hour's boat trip away from Cartagena lie the magnificent Rosario Islands, which belong to Colombia's only underwater natural park (Rosario and San Bernardo Corals National Natural Park). Abundant marine wildlife (including over 50 species of corals) and some of Colombia's best beaches draw in many in search of relaxation and active pursuits such as snorkelling and diving. Isla Grande is best for kayaking through unique mangrove forests and seeing the phosphorescent plankton light up the waters of a brackish lake at night, while Playa Blanca is Cartagena's most spectacular white-sand beach (also reachable by land). It should be said that the company you choose to tour with has the potential to make or break the experience. Low cost tours can mean multiple intermediate stops en route to your destination, as well as unpleasant surprises such as no transfer back to your hotel. Try and choose a trusted company with consistently good reviews, or opt for a private tour. Mind that seas may be rough at certain times of the year, particularly in December and January, when tours on smaller boats may even become dangerous.

Five major ocean currents intersect at Lord Howe Island and the waters are teeming with tropical, subtropical and temperate species of fish. The island's shallow lagoons contain trevally, silver drummer, bluefish and the double-header wrasse. Join a fishing boat adventure charter for the chance to hook Lord Howe kingfish, silver trevally, tuna, wahoo, cod species, marlin and more.

This is a must see for all soccer enthusiasts. Visits are normally guided both in Italian and English, and at the end of your tour you can buy Juventus memorabilia in the official shop of the team. You can choose between a visit to the stadium or the museum, or both.