<prompt> Translate the following text to SwahiliEven higher up in the mountains, Kastro was built to evade the attention of marauding pirates, and still proves elusive to all but the most determined visitors.  <response>: Hata juu zaidi katika milima, Kastro ilijengwa ili kuepuka tahadhari ya maharamia, na bado inathibitisha kuwa vigumu kwa wote isipokuwa wageni walio na azimio zaidi. 