In order to proceed any further let us take a look at air routes.
Here, we are not too concerned about places east of Ambon. Ternate is in the wrong direction.
With Saumlaki in the south, I am not sure, because it is along the Banda chain of islands, but Ambon is the hub, not Saumlaki, unless we opt for a boat back to Surabaya/Jakarta way.
My gut feeling is therefore that the initial visit to Ambon may well be centred around Ambon itself and confined to its immediate surrounding areas (only).
If that is one option then getting back to civilization by air becomes an acute problem by the look of this map.
It is because Denpasar, the asssumed entry point, is missing from this map.
Here again, though, my instinctive view is that you simply travel from Surabaya either by bus or by local boat to Denpasar. It shoud not be that time consuming as the whole area must be densely populated.
Question then is, can we fly direct to Surabaya?
Alternatively, you could fly back to Makassar and take a boat across the sea direct to Denpasar. I bet that there is not such a boat. To Surabaya, yes, I am dead certain.
This above map is Ambon as the sea hub by Pelni. Pelni naturally operate other routes, but it is not clear to me at this point how this Ambon centred spokes may connect with other routes serviced by Pelni.
Here, we simply note that there is not a direct sea service from Jakarta/Surabaya let alone from Denpasar to Ambon. Really?
If you want to be connected by sea to Surabaya, for instance, then it may be
something like the following map.
This, already, is another grand tour of the region.
It is attractive enough, but even more attractive would be the route from Denpasar along the Banda sea chain, then to places like Buton, or even better, direct to Ambon across the miles in the Banda sea.
Next is such a fictitious map.
I vaguely remember reading somewhere that it is possible to go along the Banda chain by hopping from Denpasar to as far as Maumere (but, not beyond), by local ferries, of course.
If you could also hop over to Butong from Maumere, or better still cross over direct to Ambon then you can theoretically go back and forth between Denpasar and Japan.
That sounds like a tall order, but worth exploring a little further and Pelni must come in there, I think.
However, having said all this above, the simplest way to get into Ambon and out again will be to fly Jakarta, and then fly Ambon. Simple as that.
My further investigation will be for those with ample time. In the next article I will be looking into just that.