Beppu boasts the largest volume of hot water and number of hot spring sources in Japan. The city is divided into eight distinct hot spring areas.

Watamu, located on Kenya’s picturesque coast, is a paradise for beach lovers and nature enthusiasts alike. Renowned for its pristine white-sand beaches and turquoise waters, Watamu is part of the Watamu Marine National Park, a protected area known for its vibrant coral reefs and rich marine biodiversity. The park is a haven for snorkeling and diving, with opportunities to see colorful fish, sea turtles, and even dolphins.

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.

Manaus, the capital of Brazil's Amazonas, is a major entryway to the vast and biodiverse Amazon Rainforest. Situated on both the Rio Negro and Amazon River, this city will charm you with Renaissance-style buildings and a variety of city parks, museums, and theatres.

Saudi Arabia is an Arabian Peninsula country, with a coastline running along both the Persian Gulf and the Red Sea. Tourism in Saudi Arabia might involve seeing the amazing city of Riyadh, the temples of Madain Saleh, Jubbah's rock art, and the immaculate waters of the Red Sea.