You D-8000 is a full-frame camera- the traditional standard "norma " focal length is 50mm.
Although focal length alone does not control perspective and distance is the main factor, your choice of distance and focal length will determine the "look" of your images as per perspective.
So- the function or result of a wide-angle focal length is no only to be able to simply expand the field of view, in other words, you are getting more width in your image without moving further away
but when you work in closer the perspective changes from what you eyes see without looking through the camera.
So...wide angel usage usually results in exaggerated foregrounds and diminished perceived size of the background in a scene. Telephoto (longer focal lengths) usage tends to compress the background and cause it to seem closer to the subject than in reality.
None of these alterations or variations of perspective are BAD, each can have a positive and interesting effect- it depends on what you want to achieve in any given image.
If, however, you are walking or driving along a road and spot a scene you want to photograph, the rule of thumb is, if you want to show it as the eye sees it as per perspective, a foca lengh slightly longer than "normal" will work., about 60mmm with your camera will do the job.
My point is to select the lenses you are going to pack according to the results you want to achieve based on your shooting style. A wide-angle focal length can better facilitate foreground framing, and employ foreground space or detail to lead the viewers' eye int the motif of you image. The slightly longer-than-normal formula prevents the "it looked better when I saw it and now everything looks too small or far away" disappointment issue that some photographers experience before they are aware of these perspective issues.
A telephoto focal length enables you to capture detail in wildlife and elements in a scene that is otherwise too far away and inaccessible. If the background is out of focus (bokeh) perspective may not be an issue. You may have seen action shots of athletic events, make with telephoto lenses. It may be a shot of a baseball player sliding into home-plate and it looks like the people in the grandstand are only a few feet away from the action were in reality, they are many yards away. That is the image compression that you might find reduces the illusion of the depth or space in a landscape scene.
I hope this helps- enjoy your trip- don't overload you camera bag to the poit of inconvenience but think "perspective"!