for pi’s journey to take place there must have been many enviromental factors to take place in order for PI to accomplish the route that he did. With my basic understanding of how his journey went, i drew out a small map for a visual.
The green line marks the area i think was covered by boat, and the red ex is were i suspect it sank. I came to this conclusion because, this area has many land masses and islands all around it such as Indonesia and japan. If they had sunk here it is quite likely that they would have been found, so i came to the logical conclusion that they must have came to some open water before going under. Now the red line represents the estimated travel of Pi’s life boat. Although the life boat had cleared all of the major land masses, there are, as you can see, still many other lesser islands speckaling the pacific ocean throughout the route PI most likely took, in order to have not run into these islands there must have been other forces at work. Which i suspect to most likely be ” Gyres” gyres are big circular directional currents that are influenced by the spin of the earth. Now through out the book Pi did not mention being very cold or having to use any devices to retain his heat, so i suspect he must have traveled fairly close to the equater, were it is warmest, this further promotes my Gyre theory because in order to follow the current of the gyre he must have dipped toward the equater and then have been picked up later on to travel north. This current would have lead him into the mexican shore and properly steered him clear of the stray islands.