What Lens to take

Hi,
I have recently purchased an entry level DSLR and completed a photography course (entry level) I know enough to leave it on manual and still have decent photos.
I am doing the south coast track next week and am going to purchase a slim carry bag for it. I was wondering what lens I should take. Right now I only have the lenses that came with the twin lens kit. 18-55 and 50 - 200.
I wont be purchasing any other lenses just yet really just looking for some advised from the more experienced photographers and what you would recommend taking as a beginner (if you can remember back that far
)
I was only going to take one as I didn't want the hassle of looking after lenses while changing them just yet as it is my first long walk as well.
Thanks in advance
I have recently purchased an entry level DSLR and completed a photography course (entry level) I know enough to leave it on manual and still have decent photos.
I am doing the south coast track next week and am going to purchase a slim carry bag for it. I was wondering what lens I should take. Right now I only have the lenses that came with the twin lens kit. 18-55 and 50 - 200.
I wont be purchasing any other lenses just yet really just looking for some advised from the more experienced photographers and what you would recommend taking as a beginner (if you can remember back that far

I was only going to take one as I didn't want the hassle of looking after lenses while changing them just yet as it is my first long walk as well.
Thanks in advance