How am I supposed to enjoy a vacation without a camera? On those rare occasions when I didn't have my DSLR, I kept seeing things I could have photographed.
In response to the original post, and looking at responses by others, I would suggest buying and taking the 18-135.
Canon 80D, 60D, Canon 10-22EFs, 15-85EFS IS, Sigma 100-400, Sigma 135/1.8ART, Sigma 30mm f/1.4DC, Canon 60mm EFs Macro, Rokinon 8mm fisheye, 550EX flash, Olympus TG6 underwater P&S
Postprocessing: DxOLabs 5, DxO Viewpoint 3, Paint Shop Pro 2021
Speak softly and carry a big zoom.