Photography is an important activity for me when being outdoors. I honestly believe that photography is a good way to see more, pay attention to the small details of nature and also motivate you to seek out interesting conditions (e.g. get up really early in the morning to see the sunrise).
I've gone through maybe five or six of different systems, in addition to some pocket cameras, since I bought my first SLR in 1990. In 2003 I got my first DSLR (a Canon EOS 300D) and haven't touched ordinary film since then. I used Canon EOS cameras until August 2011, when I traded it all for a Micro Four Thirds (MFT, m43) system, first an Olympus PEN camera and later a Panasonic GH2 and Olympus EM-5. In 2014 I sold the MFT gear and went with a Sony NEX-7 and some lenses, but ultimately was not very satisfied with this and did not have the Sony stuff for long. Then for a year I used only compact cameras and a Panasonic FZ1000 super-zoom, which I still have and think is an excellent camera. After that I got back into the MFT world, which I like the most. I currently have a Panasonic GX80 with the excellent Panasonic Leica lenses 15/1.7 and 25/1.4 as well as an Olympus 9-18/4-5.6. The image quality with these good lenses is very good, the small size is suitable for my use and the image stabilization is in the camera body, where it should be. The 4K video quality is also nice.
In addition I use a several compact cameras, mostly the Sony RX100, which is in a Meikon underwater housing when kayaking.
I also use a GoPro now and then and currently have a Hero 5 Black Edition. The GoPro is used almost exclusively for video and in 4K mode, which allows decent still pictures to be extracted. The wide angle lens is in my opinion to wide for almost anything other that giving a sense of speed for videos, but it does still have some use. It definitely needs to be defished, though. I really can't stand the bending trees and other GoPro fisheye effects in videos.
The gear is generally carried in a Lowepro Photo Sport 200 AW when riding a bike, an excellent camera backpack made for action sports. The gear fits fine and is well protected, and only takes a moment to retrieve the camera without removing the backpack completely.