If possible Luke, I would recommend travel sketches over travel photography. I find sketching to be a more sought after, rare skill. Furthermore, sketches reveal more about what you are looking at and how you interpret a scene. I’ve brought personal sketchbooks to interviews that demonstrate the range of activities I do, where I’ve been, and my interests.
That said, in regards to photography, do you have photos which portray your view of a space and how you interpret it versus a photo that merely states “I’ve been to this place.” Otherwise, it isn’t ‘saying’ much in my opinion.