World's Largest Cruise Ship to Set Sail as Industry Rebounds

Royal Caribbean's luxurious new vessel Icon of the Seas will be the world's largest cruise ship. Jonathan NACKSTRAND / AFP
Royal Caribbean's luxurious new vessel Icon of the Seas will be the world's largest cruise ship. Jonathan NACKSTRAND / AFP
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World's Largest Cruise Ship to Set Sail as Industry Rebounds

Royal Caribbean's luxurious new vessel Icon of the Seas will be the world's largest cruise ship. Jonathan NACKSTRAND / AFP
Royal Caribbean's luxurious new vessel Icon of the Seas will be the world's largest cruise ship. Jonathan NACKSTRAND / AFP

With cruise bookings seeing a resurgence after the Covid pandemic caused luxury liners to mothball, a Finnish shipyard is putting the final touches on what will be the world's largest cruise ship.

Royal Caribbean's luxurious new vessel Icon of the Seas is nearing completion in the Turku shipyard on Finland's southwestern coast, its maiden voyage scheduled for January 2024, AFP said.

"This ship is, as of today, as far as we are aware of, the biggest cruise ship in the world," said Tim Meyer, CEO of shipbuilder Meyer Turku, tasked with the construction.

While some have labeled the colossal structure a "monstrosity", citing its vast climate footprint, others are in awe of the sophisticated engineering integrated into this floating holiday destination and flocking to buy tickets.

Resembling a village more than a ship, the mammoth vessel boasts colorful waterparks, more than 20 decks and can carry nearly 10,000 people.

A distinct feature of the new ship, which went into construction in 2021 and entered sea trials in June, is a gigantic glass dome that covers part of its front section.

The pandemic dealt a heavy blow to the industry, raising questions about whether it would ever recover.

Cruise companies are now seeing customers return.

The Cruise Lines International Association has predicted that passenger volume will surpass pre-pandemic levels with 31.5 million passengers in 2023.

"After the restrictions are gone and the situation has eased up, we are seeing that the market is coming back very strong," Meyer said.

Bigger is better?
With a gross tonnage of 250,800 -- five times the size of the Titanic -- Icon of the Seas will snatch the title of the world's largest cruise ship from Royal Caribbean's current flagship, Wonder of the Seas.

Meyer Turku also has two more similar sized Icon-class vessels in their order books.

"We have seen over the last decade that cruise ships have become bigger," said Alexis Papathanassis, professor of Cruise Management at Bremerhaven University of Applied Sciences.

Papathanassis noted that "there are obvious economic benefits" to mega-sized ships, reducing the cost of individual passengers.

With its seven pools, a park, waterslides, shopping promenades, ice skating rink and "more venues than any other ship", larger vessels like the Icon of the Seas also offer more options for spending money on board.

This "in turn enables cruise companies to be more profitable," he added.

The extra income is welcomed by the cruise lines -- in order to survive Covid lockdowns the cruise lines "had to take a lot of credit" they now have to pay back.

"It's going to be a challenging time with financial austerity for cruise companies," Papathanassis said, adding that he expected ticket prices to rise.

What is too big?
While "the tendency towards increasing the size of the ship is not going to stop", Papathanassis believes "it will certainly be slowed down".

The reason behind this is not engineering but rather the financial equation.

"The bigger the ships are, the higher the investment cost and the required technology know-how. And technological know-how does not come cheap," Papathanassis explained.

Similarly, larger vessels come with their own unique challenges, such as port overcrowding, he noted.

This "in turn enables cruise companies to be more profitable," he added.

The extra income is welcomed by the cruise lines -- in order to survive Covid lockdowns the cruise lines "had to take a lot of credit" they now have to pay back.

"It's going to be a challenging time with financial austerity for cruise companies," Papathanassis said, adding that he expected ticket prices to rise.

What is too big?
While "the tendency towards increasing the size of the ship is not going to stop", Papathanassis believes "it will certainly be slowed down".

The reason behind this is not engineering but rather the financial equation.

"The bigger the ships are, the higher the investment cost and the required technology know-how. And technological know-how does not come cheap," Papathanassis explained.

Similarly, larger vessels come with their own unique challenges, such as port overcrowding, he noted.

Often hailed as a bridge towards more climate-neutral options, LNG has lower emissions than traditional marine fuels, but T&E has voiced concern over potential methane leaks.

"LNG does have dramatic consequences for the climate because it leaks methane," Dijkstra said.

A typical component of LNG, methane is a powerful greenhouse gas that can have a much worse impact on the climate than carbon dioxide.

"The problem is when you use LNG as a marine fuel, you are encouraging the development of the gas industry."



Tools Made from Elephant, Hippo Bones Show Ingenuity of Human Ancestors

A bone tool made from a 1.5-million-year-old elephant bone discovered at the Olduvai Gorge site in Tanzania is seen in this picture released on March 5, 2025. Pleistocene Archaeology Lab/Handout via REUTERS
A bone tool made from a 1.5-million-year-old elephant bone discovered at the Olduvai Gorge site in Tanzania is seen in this picture released on March 5, 2025. Pleistocene Archaeology Lab/Handout via REUTERS
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Tools Made from Elephant, Hippo Bones Show Ingenuity of Human Ancestors

A bone tool made from a 1.5-million-year-old elephant bone discovered at the Olduvai Gorge site in Tanzania is seen in this picture released on March 5, 2025. Pleistocene Archaeology Lab/Handout via REUTERS
A bone tool made from a 1.5-million-year-old elephant bone discovered at the Olduvai Gorge site in Tanzania is seen in this picture released on March 5, 2025. Pleistocene Archaeology Lab/Handout via REUTERS

An assemblage of tools found in Tanzania that was fashioned about 1.5 million years ago from the limb bones of elephants and hippos reveals what scientists are calling a technological breakthrough for the human evolutionary lineage - systematic production of implements made from a material other than stone.

The 27 tools, discovered at a rich paleoanthropological site called Olduvai Gorge, were probably created by Homo erectus, an early human species with body proportions similar to our species Homo sapiens, according to the researchers.

The implements, which were up to 15 inches (37.5 cm) long and came in a variety of sharp and heavy-duty forms, may have been used for purposes including butchering animal carcasses for food, they said, Reuters reported.

The adoption of tools heralded the dawn of technology, and the oldest-known stone tools date to at least 3.3 million years ago. There have been examples of sporadic use of tools made from bone dating to about 2 million years ago, but the Olduvai Gorge discovery represents the earliest example of systematic production of such implements - by about 1.1 million years.

The Olduvai Gorge bone tools were found alongside various stone implements made around the same time.

The addition of bone implements to the human tool kit was an important moment, according to the researchers, reflecting cognitive advances and growing technological skills as well as a recognition that animals can provide a source not only of meat but of raw materials.

"Precise anatomical knowledge and understanding of bone morphology and structure is suggested by preference given to thick limb bones," said archeologist Ignacio de la Torre of the Spanish National Research Council (CSIC), lead author of the study published on Wednesday in the journal Nature.

Limb bones are the densest and strongest kind.

Olduvai Gorge cuts through the southeastern plains of the Serengeti region in northern Tanzania. At the time these tools were created, our ancestors lived a precarious hunter-gatherer existence on a landscape teeming with wildlife. Tools of various types - for instance, for cutting and pounding - were of increasing importance for hominins, the name referring to the bipedal species in the human evolutionary lineage.

The hominins who made the Olduvai Gorge bone tools used a technique similar to how stone tools are made - chipping away small flakes to form sharp edges in a process called knapping.

"The study indicates our ancestors used subtly different techniques to create tools from different materials. This suggests a level of cognitive ability that we previously lacked evidence for during that period," said University College London archaeological conservator and study co-author Renata Peters.

"For instance, when they knapped the tools we examined, the bone was likely to still contain some collagen and water. Collagen provides elasticity to the bone, making it softer to knap - shape - than stone. However, bone can also break if struck too forcefully," Peters said.

Collagen is a fibrous protein that serves as the main structural component of bones, as well as muscles and skin.

In addition, the outer layers of bone are tough, while the inner layers - composed of a spongy material - are softer.

"These characteristics mean that working bone demands different skills from working stone or wood, for example," Peters said.

Wood is less durable than either stone or bone. Any wooden tools from this time period likely would have decomposed long ago.

The sheer number of tools - bone and stone - found at the site suggests hominins visited there regularly. The tools date to a transition period between simple tools called Oldowan technology and more advanced ones called Acheulean technology including the likes of handaxes.

All but one of the 27 tools were made from elephant or hippo bone. Hippos were common in the area but elephants were not, meaning their bones were probably carried to Olduvai Gorge from elsewhere, according to the researchers.

No ancient human fossils were found at the site. While Homo erectus is the leading candidate as the maker of the bone tools, another more archaic hominin species, called Paranthropus boisei, also is known to have inhabited the region at the time.

"There is no direct evidence of who made the bone tools," de la Torre said.