If you're looking for a cool way to spend a day, head out to the waters of your local harbor and take a look at the vessels docked there.

You might be surprised at just how advanced and technologically advanced yachts have become over the years. Take, for example, the double hull yacht. These vessels were first developed in the late s, and their popularity grew as steam power replaced sail. Today, double hull yachts are still a popular choice for luxury cruises and other long-distance voyages.

Their design is unique, and they offer a unique perspective on sailing.

If you're interested in learning more about yachts and their history, be sure to check out modernshiphistory.com.