A narrow boat is like a long, skinny house that floats on water. Just like a regular house, it has rooms that you can go inside and live in.
The narrow boat is really, really long (sometimes as long as a football field!) and skinny (like a hot dog). It uses a special type of engine called a "narrowboat engine" to move through the water.
Inside the narrow boat, there are kitchen and living areas, just like in a house. There are also bedrooms where people can sleep. Some narrow boats even have a bathroom with a shower and toilet.
People can take the narrow boat on trips along canals and rivers. It's like going on a road trip, but on water! People use locks (which are like giant bathtubs for boats) to go up and down hills and valleys in the waterway.
Overall, a narrow boat is a fun and unique way to travel and live on water!