I'm sketching a scene in a story involving a castaway washing up on the shore of Papua New Guinea. It would work best if he made an involuntary ocean voyage from a long way away, perhaps having been fishing near some other shore when blown out to sea by a storm.
I'm trying to figure out where are the realistic options for where he could've come from.
Looking at diagrams of the currents in the Pacific, e.g. https://oceantracks.org/library/the-north-pacific-ocean/major-currents
If I am understanding the above correctly, New Guinea is at the destination end of the North and South Equatorial Currents together, which means my castaway could basically come from anywhere on the west coast of the Americas; he could have been fishing off the coast of California or Peru, been blown out to sea by a storm, and the only issue is having enough food and water to keep him alive until the current takes him to New Guinea. Am I missing something or is that accurate?
If I am indeed understanding it correctly, roughly how long would it take for the current to carry him across the Pacific?