I saw an orb like UFO while on vacation.The most recent UFO I saw was a couple months ago when I was on vacation in eastern Washington at Moses Lake. This was during a hot summer day, the sky had no clouds, the perfect day for swimming. As I managed to keep myself afloat with a poorly performed backstroke, I was gazing up at the sky. Swimming closer to the shore on my back, I continued to gaze upward, when something once again, an orb like UFO caught my eye. It wasn't like a light orb, but rather a gray solid mass.It was not a plane or jet or helicopter, as it made no sound. It moved slowly, but was not a balloon or anything and was quite far up there to be a balloon. Plus it was entirely round. I took another moment to look at it, but became immediately unnerved – I didn't think it was dangerous, I, like most humans, just get a little creeped out by the unknown – and turned over to swim on my stomach back to shore. This is going to sound weird, but I did not point it out to my sisters once I got back to camp – I didn't want to freak them out, but even more than that I didn't think they'd believe me. But again, I was just creeped out that I tried to push it out of my mind for the time being and didn't see the UFO again.With all of the UFOs I've seen, I've had no missing time, no weird marks on my body, no weird “powers”, no strange memories or dreams. I have no clue what they were or are, only what they were not and through process of elimination, those objects were either nothing that we – we being humans – have, or that we – we being the general society of the USA and the rest of the world – know of. They could have been natural phenomena that I cannot explain, but I personally think that these objects did not seem organic or natural and that at least one – if not all – of them even seemed to be controlled by an intelligence. The only thing I can think of is that they are either of these suggestions, or a combination of the following conclusions: they belong either to a certain group of people in the government who isn't letting the rest of the world in, on their technology, or the objects are from someone or something else.