Start with a walk, take that walk as far as the station.
Once at the station get on a train.
When arriving at the correct station disembark.
Make sure you have gotten off at the correct station and not the incorrect station which will leave you where you may not want to be.
Once disembarked, walk.
Walk as far as the mainline train. Embark.
Remain on the train for the right amount of time, make allowances for changing of drivers and other potential delays. If there are none, be sure to get off at the the right time and at the right station. Again being sure to be at the place you want to be not at the place you do not want to be.
Next board the plane, after having gone through all the correct procedures, being those stated by the authority of the country where you are boarding the plane. If for any reason you feel compelled not to do so, your journey may or may not end there. If, you have completed, as required the formalities demanded of you, then all should be fine and you can board.
Once the plane has arrived at the destination, make sure to disembark. In this instance you will have no choice as to whether you can disembark or not. You may still have had to make allowances for potential delays but these will not impact on where you have to get off. Your journey continues as you observe the rules and regulations for entry into and out of the airport.
Once you have done so, you may have options. I would suggest at this point that you have decided beforehand what your options might be and so know what to do next.
Proceed to the mainline train station. Get on and get off as per earlier section.
Once you have gotten off, ensuring that you have all your belongings with you, make your way to the jetty.
On arriving at the jetty, check to make sure that you are at the right jetty and that the vessel is the right vessel and if all these things are right, embark. Not forgetting your possessions.
Travel over the ocean blue.
On arriving at the other side repeat two paragraphs back, in reverse.
Keep going… keep going…. keep going….