When the United States began building its first cruise ships in the 1960s, there was one thing that set them apart: they were powered by engines made of solid iron.

This made them nearly impossible to attack by aircraft, and they were built to last for decades, not just decades.

Today, cruise ships are a much bigger part of the fleet than they used to be, and the US Navy and Marine Corps have had to learn how to make them safer.

But how safe is a cruise ship?

There are many different kinds of cruise ships and each one is built for different purposes.

There are big, cruise-y ships like the $2.5 billion Crystal, which is designed to carry up to 7,500 passengers, and small, slow-speed ships like those made by the German firm Alstom, which can hold up to 200 passengers.

There is the $1.7 billion Royal Caribbean Cruises Explorer, a sleek little boat with an impressive 8,000 square feet of living space that can carry up 10,000 people, and then there is the small, lightweight Royal Caribbean Crystal, with a seating capacity of 3,000.

Each of these ships is equipped with various sensors and other systems that can help keep the ship safe.

Here are five ways to make sure your cruise ship is a safe place to go. 1.

Check its safety.

Cruise ships have a long history of accidents and have caused massive problems for cruise passengers.

As early as the late 1800s, ships that had not undergone major maintenance had been sinking, and some ships had been involved in violent collisions with other ships.

The safety of cruise passengers is one of the biggest issues that the cruise industry faces, and many cruise ships have already had major problems, like an explosion that killed more than 30 people in a cruise liner in 2008.

So you need to check on your cruise’s safety every year, and make sure you’re not getting a cruise that isn’t safe.

2.

Look for ships that have undergone maintenance.

If you are on a cruise, it is a good idea to check with the cruise line.

There might be some changes you can make to your cruise, but make sure that the ship has undergone the required safety maintenance before you go on board.

If it hasn’t, there’s a good chance you’ll get a cruise with a different crew, with different schedules, and perhaps different types of insurance.

3.

Look at cruise lines’ schedules.

Cruise lines will tell you how long they will be taking passengers on cruises.

Some cruise lines even let you change the schedule if you’re worried about your cruise getting cancelled.

If the cruise isn’t booked, you might be able to ask for an upgrade, which will cost more.

4.

Take extra precautions when on a ship.

You need to wear a seat belt and wear your seat belt belt while on board the ship.

The cruise line might require you to wear gloves and wear a hat or mask if you want to use the restroom.

Also, be aware of the ship’s fire safety measures, like a fire extinguisher and a fire alarm system.

5.

Be cautious of people.

You should also check on the crew members before you leave.

You might have to wait a while to meet up with a new crew member or you might get lost in the crowd.

If there’s no one to greet you, you could get into trouble for not wearing your seatbelt, or for not keeping your hands on the steering wheel.