my question is what is the planning of the trip?

The men plan the trip in the first chapter. They begin by arguing about what sort of trip they should take. Harris wishes to avoid remote locations and counters with the suggestion of a sea cruise. J. vetoes that idea because one week is not enough time to overcome seasickness and actually enjoy the trip. He notes to the reader that no one admits to being seasick on land, but that many people have trouble with it when actually on a ship. They finally decide on a river trip.