Every day people get on trains, planes and prepare to take risks. But what about the deep sea? Covering about 70 percent of the earth’s surface, there is still much to be discovered about the biggest unknown (未知的) part of the world. The underwater world is such an amazing place. Have you ever wanted to have a try?

From tourist submarines (潜艇) to underwater restaurants, undersea tourism is catching people’s eyes. Submarine tours have been on in more than 20 places in South America and Europe. The submarines receive nearly 2 million tourists each year and the number is still growing. Passengers can see the colorful coral reefs (珊瑚礁) and sunken (下沉的) ships through the big windows of them. Now there has been a move to connect art with the underwater tourism. Passengers who love art can also watch amazing artworks in underwater museums like Australia’s Museum of Underwater Art.

For a more fantastic experience, tourists can enjoy nice food under the sea. In 2016, the Hilton Maldives Resort & Spa opened the world’s first underwater restaurant Ithaa. Sitting in the restaurant, you can enjoy the beauty of the ocean. But it isn’t cheap. The dinner costs about $ 400 per person. Be sure to book it early. Because the restaurant has only 14 seats.

Undersea tourism has also brought more attention to the importance of protecting oceans and the animal life that calls them home. British artist Jason Taylor, whose artworks can be seen in a lot of underwater tourist places around the world, feels this is key. “Most people just see the surface of the ocean and it is hard to imagine that things underwater are so easy to be hurt. We don’t consider our oceans as important as our lives and we should.”