Immortalizing your lifetime adventure depends on how strong is your memory, and how detailed it is. If it is too difficult to remember what you ate for dinner two weeks ago on Tuesday, then at least one form of recording is in order.
Take photos. It is said that a photo is worth a thousand words. Pictures reveal many things you at first may not have noticed in the background. Sometimes a thing unintentionally included may bring back another memory set. Once the scene is left, it will never be the same because all things change, even if imperceptibly.
Tape-record. This is like on-the-spot reporting. There is only so much time you can sit and make up on the spot news worth listening to, and you need to have thought through what to say before pushing the record button. Hemming and hawing are not interesting to listen to, nor is someone stumbling for words. Vocal word pictures are most difficult to do without a written script. But if you are a natural born story teller ….
Send emails during the trip. Give fresh vibrant news of what is going well and where the pitfalls were. Sometimes the best stories are where you went wrong. But this works if you have access to Wi-Fi and you compose every evening.
Write a diary, daily, faithfully. All the photos in the world cannot record what you perceive, how you felt, what you have understood by assembling a range of thoughts which are not in pictures. A written diary/journal requires the writer to economize language and concentrate a vivid word image. Of course there are events which will not be included because they are not as significant as the main one(s) you choose to record, and truthfully not everything is worth recording. In the course of a day, there may be three to five good short anecdotes. Barring a day long battle against an enemy army, the rest of the day becomes a smoke screen obscuring the big events. Photography captures a moment. Writing makes precise.
Write a book. After completing your recording at the end of the trip, the time arises to analyze, distill, summarize, and organize the central theme(s) you want to portray. Not everything written is important to the central theme(s). A book is a dialogue between the writer and the reader. The more carefully the writer explains in an organized fashion what was seen, heard, smelled, felt, sensed, the clearer the image in the mind of the reader. The reader may agree or disagree or reject what the writer says, or contradict it. So the task of good literature is to create a concise, truthful, believable mental construct for the reader to follow.
Become a public speaker. You are interesting! Tell people. Twenty minutes gives plenty of time to capture people’s attention and their interest in your adventure. But you must hone the stories and details to sharp images. Long winded dull speakers will wear out the audience in five minutes. Offer to speak to high school students. Teenagers will let you know quickly if you are boring. Talk withs the teacher afterwards, asking what worked with the kids and what you might do to improve your talk. Visit a bike club. You will have a rapt audience if you have the goods in travel excitement.
Let a newspaper know of the trip. Before, the trip offers the possibility of ongoing stories. After the trip, the newspaper may entertain a special interest page. Reporters love/need their special angle stories. Generally a bike rider can give a 20-30 minute interview without much of a problem.
I wish I could wave a magic wand and remember all of the great stories that happened to me. But that would only clog my mind. I savor the funny and painful events that made the trip an enjoyable adventure. I have enjoyed the retelling of tales to which an audience listens in awe as I tell the next awful disaster that I cycled into. Not every memory comes back, but my fun is that no one else can tell the stories I have to tell.