[lukan]

Possible, but there were tribes who could do sea faring only by simple wooden canoes. The polynesians for example went even so far as New Zealand by wooden boats only.

https://de.wikipedia.org/wiki/Datei:Model_of_outrigger_boat,...

And the canarian islands are really close to each other, you could probably do island hopping by clinging to some wood (but the currents and waves can be nasty there).

[aivisol]

I think as it was mentioned in the article it was mostly due to lack of need to travel: they were poor and didn’t have things to trade to justify seagoing. And then the other additional factors: lack of iron, the fact that shores were less habitable than mountains ( lack of freshwater), wind and currents between islands.

[lukan]

But travel between the islands is still something one would think is worth it. And if it is just to prevent incest.

[wolverine876]

Curiosity, or when food runs low, or for a million reasons. And boats are not only for travel between islands; there's also fishing, or to retrieve that thing that washed out to sea in the latest storm, etc etc.

[usrusr]

Doable, but when every area that isn't up in the clouds is properly deforested at some point the economics stop making sense.