One of my favorite places we visited in Indonesia was the pond at Dusun Bambu in Lembang, with little huts around it. My impression was that you could eat lunch in those huts. I don’t know if you could camp overnight there.
I just sold my EF 17-40mm f/4L which has been my main lens for years, and replaced it with the EF 16-35mm f/4L. Both are excellent lenses, but the “16” costs another $250 to $400 more (depending on where you buy). It has image stabilization, which the “17” does not, it’s slightly wider, but it’s missing 5mm on the telephoto end of the zoom range.