SpaceX has an FCC application for a Starship orbital flight which gives a lot of important info - Booster lands offshore in gulf, Starship threads its way between islands and then performs reentry and landing about 60 miles north of Kauaii
https://apps.fcc.gov/els/GetAtt.html?id=273481&x=And of course the landing is targetted and controlled, but there will be no landing barge, I'm, not sure if that means they'll tow it back or sink it. Given that it's gone through reentry there's lots of value in looking at it.
(assuming it doesn't break up)
@elonmusk
We need to make sure ship won’t break up on reentry, hence deorbit over Pacific