Dad took photos of hikes (or tramps as we call them in NZ), I hike to take photos, but I think there's always some overlap.
Dad took some nice photos in his life, and I'll take some purely record shots that are not meant to be particularly artistic, even if the main purpose of my adventure is photography.
Even coming from the perspective of going on adventure for the purpose of photography, I agree with the need to handle a diverse range of subjects.
Some people might be pure landscape, or nature photographers, but I'm interested in anything photogenic, although I tend to have a particular interest in natural history, and I think that also could be divided into two similar categories, of those who take photos of nature, and those who go to nature to take photos. Of course going into nature often involves hiking, so there's some overlap there.
In my case, I like to get a good photo if I can, but I'd rather get an average or even poor photo and record some species I've seen than no photo, as I'm somewhat addicted to the citizen science platform iNaturalist.
A solution I've found that works well a lot of the time that would probably apply even better to those more interested in the hike than the photography, is to carry two cameras.
I have my K-70 with a DA 55-300 WR and an Olympus TG-6 P&S for macro and underwater pictures of fish and invertebrates, and for landscapes if I have to. It's fully waterproof and shoots raw, it's field of view overlaps with the K-70 with DA 55-300, it also weighs less than carrying a second lens and has GPS.
It has a small sensor and only 12M pixels, so isn't great for high ISO, or big enlargements, and it's harder to use than the K-70, but I find the two a good compliment for each other as I can instantly switch from wide angle as I can have the TG-6 on my wrist and the K-70 around my neck. I'm not likely to print any macro images so large that 12M pixels will be an issue.
If I'm not expecting birds or macro subjects, I'll take the D-FA 28-105. I know 16-85 would be better on APS-C but I got the 28-105 cheap, and it's equivalent to 42-157, so similar to the F 35-135 of the film era in terms of field of view on APS-C, and a good, light, weather sealed zoom.
I think there is something I'll call Murphy's inverse law of outdoor photography: The more remote the location, and thus the less likely I am to be able to return, the more likely I am to want to carry more equipment in order to photograph the location in as much detail as possible.