But there are other ways. These messengers were used by Bernard Moitessier during the first round-the-world singlehanded race, describe very well in A Voyage for Madmen.
Very traditional, rather like his yacht. Dependable and thrifty?
For express service, he chose a multihull design.
Most of us would judge him a bit mad by this point in the race, but for him, this seemed to be his "normal." He was simply well adapted to life alone, at sea, and less so for life with people ashore.