What parts of the world could remain untouched by humans the longest?

I thought it would be really cool to try and see what places could be untouched for the longest. It's fine if they're explored I think but large scale settlement is a deal breaker. These are some candidates I thought of:

- Madagascar, Mauritius and Reunion
- Socotra (small island off Yemen, really cool. I think regular monsoons block ships for at least half the year)
- Any of the pacific islands tbh (looking at you Easter)
 
Socotra would be great, considering the biodiversity, but considering that pre-Homo sapiens hominins reached there, I doubt it could remain secluded for very long.

The Pacific's remote islands are definitely the best. I guess a Polynesian-screw would do that. Would also preserve biodiversity since the Polynesian rat wouldn't be getting spread everywhere.

Mauritius and Reunion kinda were, since even though there were explored, there wasn't much settlement for the longest of time.

For the Atlantic, Bermuda and the Azores work the best.
 
Remote small islands on Atlantic, Pacific and Indian Ocean. Perhaps New Zealand could be untouched by humans longer than in OTL.

Could there be unpopulated Americas and Australia?
 
Could there be unpopulated Americas and Australia?

Doubt it. Australia is just too close not to be reached before long. Maybe humans wouldn't have been there as long, but looking at the size of Sahul in the last ice age, it seems doubtful humans couldn't have reached there.

Americas are a bit easier, but the migration route from Northeast Asia along the North Pacific to the Pacific Northwest seems too good not to be used at some point. Not even getting into the whole Beringia thing.
 
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