A tandem bicycle is a special kind of bike made for two people to ride together. It's like having two bikes glued together side by side or front and back.
Imagine you're going on a bike ride with your friend, but instead of having two separate bikes, you both ride on the same bike. One person sits in the front and pedals, while the other sits in the back and helps pedal or just enjoys the ride.
Both riders have their own handlebars to hold onto, but only the person in the front can steer the bike. The rider in the back needs to communicate with the front rider to let them know when to turn, stop, or slow down.
Tandem bicycles can be really fun because you can work together to pedal the bike and go faster than you would on a regular bike. Plus, it's a great way to spend time with a friend or family member while enjoying the outdoors.