Can I travel alone with a tour group under the age of 18?

No, parents need to sign up and sign a travel contract.

In order to ensure that the travel contract has legal effect, both parties must be adults who have reached the age of 18; If a student is under the age of 18, parents can sign up and sign a travel contract on his behalf. If students organize their own classmates to join the tour group, but parents can't take the time to sign up for them and sign a travel contract with the travel agency, they can provide a parental consent letter with a copy of their ID card and autograph, and the parents of other students will sign a formal travel contract with the travel agency as the representative to ensure the legitimate rights and interests of tourists.