Couchsurfing is a way to travel, stay in a new place, and meet people. It's like staying with friends instead of in a hotel.
When you join Couchsurfing, you can look for people who are willing to let you stay with them in their home. You can talk with them and learn about their culture. You can also look for people who are looking for a place to stay in your area.
People can also offer to show you around their city, or do activities with you that they think you might like. This way, you can get a more authentic experience of a new place, and make new friends at the same time!
Couchsurfing is free (although you can give a small donation to the people you stay with if you like), and it's a great way to travel and meet people.