Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Puerto Peñasco, also known as Rocky Point, rests along the warm waters of the Sea of Cortez in northern Sonora, Mexico. Along its shoreline, Sandy Beach draws visitors with long stretches of walkable sand and calm water, while Playa Hermosa and Playa Mirador offer quieter spots where tide pools appear as the sea pulls back. Boat rides to Bird Island, also known as Isla San Jorge, provide a rare chance to see large colonies of sea lions resting on rocky ledges.

St. Martin is a unique Caribbean island that blends two distinct cultures within a single destination. The northern side, Saint-Martin, is an overseas collectivity of France, while the southern side, Sint Maarten, is part of the Kingdom of the Netherlands.

Dampier Peninsula is situated along the north east coast of western Australia within the famous Kimberley. Around half of the Peninsula is covered by Aboriginal land, and so you should check with the Tourist Information Centre in Broome about the areas where you may not be permitted. However, there are several places where you can stay.

Coursing through 10 countries, the Danube is the second-longest river in Europe. This waterway, lined with fortresses and castles, rises in Germany's Black Forest and runs for 1,770 miles to the Black Sea. The Danube is an essential commercial thoroughfare for central and southeastern Europe, and several river cruise companies sail vessels on it year-round. Destinations along this river include Vienna, Budapest, Passau and Bratislava.