Applicants must apply for a Marriage Visitor Visa if they want to get married or register for a civil partnership in the UK, want to give notice of a marriage or civil partnership in the UK.
However, it is still possible to apply for a specific Marriage Visitor visa which allows applicants to enter the UK to marry or enter into a Civil Partnership without seeking any further leave to remain. For example this visa would be perfect for applicants with a specific desire to get married in a romantic Scottish castle! Both parties to the marriage are required to leave the UK at the end of their visa.