Santander, the capital of Spain’s Cantabria region, sits along the Bay of Biscay and offers travelers a mix of coastline, culture, and history shaped by centuries of maritime life. Once a bustling port for Castilian exports, Santander saw its golden age in the 19th century when Spanish royalty turned it into a summer retreat. The legacy of that era remains visible at the Palacio de la Magdalena, perched on a peninsula with views of the sea and home to royal stables, a mini zoo, and guided tours.

From Yellowstone National Park to the towering peaks of the Grand Tetons, Wyoming is home to some of the most dramatic and diverse landscapes in the country.

Located on the Adriatic, Koper is a coastal port city in Slovenia. Koper is home to a variety of architectural gems dating back centuries, especially near the city's central Tito Square. Koper's marina and beaches provide spectacular views of the Bay of Trieste, while the city's variety of museums, parks, restaurants, and bars offer plenty to explore and entertain.

This city is the last stop on one of the busiest artificial waterways in the world, the Kiel Canal. It is an important base for the German Navy and famous for its international sailing event, the "Kieler Woche", an annual sailing event that attracts millions of people around the world.

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.