<prompt> Translate the following text to SwahiliUnless you arrive by yacht, the other option is a motor-launch ride from Saint-Martin, 15 sometimes very choppy nautical miles away.  <response>: Ikiwa huja kwa mashua, chaguo lingine ni safari ya kutua kwa injini kutoka Saint-Martin, maili 15 za baharini wakati mwingine ni ngumu sana. 