I apologize if this has been covered before, but surprisingly I couldn't find any similar threads in a search. My wife and I like to travel, and documenting trips is one of the big reasons I got into photography. With a trip to Alaska coming up this summer, I'm starting to think about what gear I want to take, and it's actually quite a challenge. Vacations like this mean I'll want to be able to cover everything from landscape, hiking and wildlife to indoor & low light shots. I have mostly prime lenses at present, but I am wondering if investing in a zoom lens or two at different focal length ranges would be more appropriate and versatile for travel scenarios. I'd love to hear from others - what do you all carry as your travel camera + lens setup and why? I'm particularly interested in what lens combinations work well for everyone.