A honeymoon was a vacation or holiday taken by a couple soon after their wedding. During the vacation, the marriage was usually consummated by frequent sex. Amy Pond and Rory Williams, for instance, spent their honeymoon on a luxury spaceship, in which their sexual play involved the use of costumes. Unfortunately, their journey was interrupted when the craft lost control in the skies above Sardicktown. (TV: A Christmas Carol)
Haresh Chandra took Gita Chandra to Brussels for their honeymoon. Gita thought 'there was nothing there.' (TV: The Wedding of Sarah Jane Smith)
At the wedding of Sarah Jane Smith and Peter Dalton, Peter confirmed that after the wedding was a secret, when asked by Gita Chandra where they were going for their honeymoon. The marriage and the honeymoon never happened as Peter died as the Trickster gave him life as part of one of his schemes. (TV: The Wedding of Sarah Jane Smith)