Yellow mustard on a salmon patty.
Water availability isn't usually a big issue for us, we have more than enough room in our freshwater tanks for 2-3 days, and that's as long as we can go without electricity hookups (because we need hookups for our internet and I have to work). The problem was that I forgot to mark those details in our trip planner so we weren't properly prepared. We don't drive with our water tanks full unless we know we will need it, because more weight increases trailer sway and decreases fuel efficiency.