2x interviews
Interview 1: explaining trends from a map; Interview 2: questions based on images
Prepared sample questions based on personal statement
Let the interviewers know if you don't understand something, but always try to work towards an answer.
Remember this advice isn't official. There is no guarantee it will reflect your experience because university applications can change between years. Check the official Cambridge and Oxford websites for more accurate information on this year's application format and the required tests.
Also, someone else's experience may not reflect your own. Most interviews are more like conversations than tests and like, any conversation, they are quite interactive.
Test taken: None
Number of interviews: 2
Time between interviews: A day
Length of interviews: 20 mins
Online interview: Yes
Both my interviews were similar. You could not prepare for either in anyway. The first involved looking at a map and describing and explaining trends across the country. The second involved looking at images and answering questions about them.
I thought about what they might ask related to my personal statement and came up with a couple of answers. I also watched and read Geography-related things.
Don’t stress! In the interview, be yourself. They will see through you if you're trying to fake stuff. Admit if you don’t know. Give everything a go and don’t be afraid to disagree with the interviewers.