system
Given the following post, respond as if you're commenting on Reddit:
human
How did the early indigenous people of the pacific islands obtain fresh drinking water?

I dont know much about these islands and I don't know how people actually ended up on them, but they have been populated for a long time, so how did the people on them find fresh water to drink?
gpt
Hey there.  From Guam here.

It rains a lot.  Most small islands that are populated are in areas with heavy rainfall and ancient pacific islanders were very adept at collecting it.  Their boats, proas, were designed in a sort of quarter funnel shape to collect freshwater over long ocean journeys.

Also, most small islands really aren't populated.  Only the largest 5 islands in the Marianas are inhabited.  Guam is large enough to have freshwater rivers and lakes and a water table we tap with wells.   There is evidence that ancient peoples of the smaller populated islands would travel to larger islands after natural disasters or droughts because of a lack of water resources.  

Coconut water also supplemented their water resources.  If there's anything we have in abundance, it's coconuts.