Located in the Coral Sea, just off the eastern coast of Australia, the Great Barrier Reef is the largest system of coral reefs in the world and a colorful ecosystem home to a variety of marine life, including sea turtles, fish, sharks, stingrays, and corals.

Sudan, located in northeastern Africa, is a country of diverse landscapes, from the vast Sahara Desert in the north to the fertile Nile Valley in the center. The Nile River, one of the world’s longest, runs through the country, shaping both its agriculture and history.

Newcastle is the capital of the Hunter Valley Region, in New South Wales. Lakes, beaches, rivers and bays, combine with lush countryside to make the Hunter region surrounding Newcastle almost unlimited in its appeal.

Santa Cruz de La Palma is the capital of the island of La Palma, one of the seven Canary Islands. Although often forgotten in favor of the similarly named Santa Cruz de Tenerife, it is a compact and colorful colonial town well worth a visit. Swimming, paragliding, and hiking and some of the most popular daytime activities, while stargazing is a favorite pastime after the sun goes down.

Georgetown, Guyana’s capital, is a city of wooden cathedrals, tree-lined canals, and street corners alive with music, food, and political discussion. Located at the mouth of the Demerara River, the streets still follow the Dutch grid system, and the city’s architectural signature, with its elegant wooden buildings with louvered shutters and fretwork, make it one of the most visually distinct capitals in South America.