China’s megaproject to take millionaires over 3,000 feet below the sea

A project led by China seeks to take billionaires and other high-net-worth travelers to depths between 3,280 and 13,120 feet, where sunlight no longer reaches. The China Ship Scientific Research Center, based in Wuxi, has completed the design of a tourist submersible capable of descending to 3,280 feet.

This has always been a highly specialized market, dominated by companies such as Triton Submarines and U-Boat Worx, whose goal is to provide a one-of-a-kind experience: observing the seafloor from inside a pressurized cabin.

According to the proposed timeline, the prototype is expected to be ready by the end of 2026, with commercial operations scheduled to begin in 2030. Each dive would accommodate four passengers. Unsurprisingly, the service is intended for individuals with substantial financial means.

As for pricing, a dive to about 65 feet is estimated to cost around $150, while deeper expeditions reaching 3,280 feet could cost several thousand dollars. With this project, China is clearly targeting the ultra-premium tourism market.

The initiative is built on a straightforward assumption: there is a large and growing number of wealthy individuals willing to pay for exclusive experiences. Estimates suggest there are more than 575,000 ultra-wealthy people worldwide, and that number continues to rise. Many of them seek out rare, high-end activities, such as luxury yachting or space travel, and now potentially deep-ocean diving as well.

Several challenges

Descending to these depths, however, presents a number of serious challenges. Water pressure can rise to 100 times greater than at the surface, temperatures remain near 39°F, there is no natural light, and the environment is both highly corrosive and unstable.

One of the biggest engineering hurdles has been developing a strong outer hull with a transparent viewing surface capable of withstanding that pressure while still offering clear visibility. Even so, Chinese engineers say they have found a solution through a transparent structural design that provides a 360-degree panoramic view.

Among China’s previous deep-sea achievements are the Jiaolong, which is capable of diving to more than 22,965 feet, and the Deep Sea Warrior, which has been used for oceanographic research.

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