Oddly enough, my worst travel experience was also my best travel experience. When I was younger, my family used to travel up to Maine to spend some time with my uncle's family, and together this one larger unit would go various places around there. It was our summer vacation. The trip there and back sucked, especially that one time Stephanie puked everywhere. That wasn't awesome.
But one of those summers, we went to Acadia National Park. The place is beautiful and if I could go anywhere for a vacation, my vote would go there. But my reasoning is that I need a redo. You see, when we went there last time, Charlotte and I both slipped on some rocks and tore our legs up on barnacles. And then, maybe a week later, a public pool turned my giant scabs green.
So the location was beautiful, but I could have done without the barnacles.