This could be an entry in your journal or diary, some personal correspondence, or a poem. After not writing for more than a couple of days, it is hard to get the literary engine warmed up again. Vacations are a good example. This is supposed to be a time when you leave your work behind and do nothing but relax, and that works fine if you are leaving behind a regular job. A guitarist for example, would probably not leave his or her instrument behind when going to the mountains, and a painter would probably take at least a sketchpad along when vacationing at the coast.
Writers are no different.
That is why you should always carry some kind of note pad, a supply of index cards, or a micro-cassette recorder in order to write down or record interesting ideas, scenes and descriptions. In many cases these random scribblings or recordings are never used. However, they act to keep the juices flowing at a low ebb, and make it easier to begin writing again once the vacation is over. This is not to say that you should never attempt to clear your mind of all things related to your writing career, but leisure, peace, quiet, and soft ocean breezes are simply not conducive to doing this. Involving yourself in other activities is the best way to relax without thinking about writing.