Solomon Islands to PNG by boat

I've read the post in the forum about it, but I still having some doubt. I'm going to try that route on december. I already have the visa to enter in PNG, so my idea is to reach the Shortland Islands and from there cross to Kangu Beach a market day.
Most of the post have positive reviews exept the last one where some travellers were deported doing the oposite route, that make me some questions.
Should I show my passport to get the entry stamp in Buin or better in Arawa or Buka?
Can the officer deport me if I have a visa? Or should I say that I enter from a different route, in a yatch for exaple?
And for the exist stamp in Gizo? Should I tell my plans to cross by boat to PNG?
Also Bougainville will have the referendum on 23 of november, it can make it even more difficult but also more interesting.
Thank you

I have only done the other direction.

To answer at least one of your questions - yes the officer can deport you if you have a visa, since you are crossing a border that is not open to foreigners. If they do so will be at their discretion. I think it is a high risk during/after the referendum and you should have at least a plan B (i.e. cash to buy plane tickets back out of the Shortlands).

If you get deported or sent back, they may invalidate your PNG visa.

I think you should be fine receiving the exit stamp in Gizo - if that already fails you are better off going the legal route anyway. Ask them to put a date a few days later. PNG authorities may not appreciate it if there is more than a few days between the exit stamp and you reporting to their border post (hearsay). For the entry stamp, I would try in Buka as they seemed used to giving exit stamps for the other direction. So maybe they will be relaxed about accepting entry.

Good luck

mknoke - you say you have crossed from PNG to Solomons, was it recently? Or do you know whether it is easier in this direction rather than the opposite? There was some news two months ago ( PM to open border posts ) , but I have not read of anyone entering or leaving PNG since then.

Thank you! But I still with a doubt, what should I say at inmigration offices in Gizo and Bougainville? The real route I take or something different? I think Buka is an official point of entry for people who came in yatch, but I dont know if I need some kind of evidence of that.

I'm looking at doing this at the end of the month (January 2020). Were you successful? Eagerly waiting for your reply!!!

Thanks,

Paul

If you do it please update on here. There have been no reports of people doing this crossing for a while. People were advising against it when I was in Bougainville in September due to the upcoming referendum but am not sure whether this has changed

I still with the doubt, was not possible to find the inmigration officer in Gizo cause he was sick. So I went back to Honiara and I take a plane. So Im not sure if its possible, some local people says it is and some other people says no... The inmigration phone numbers in Honiara are not working, and it supossed to be another office in Noro.
Anyway if someone have questions about how is the transport or how to manage the travel in Solomons or PNG dont hesitate to ask.
I have also good information about how to travel around Sepik river without a guide in a cheap way, I think there is no information about it in the web.