Timer on the Butcher-Freeport boat

[Jarnin]

I just timed it. It breaks down like so:

Boat arrives in Freeport and hangs out for 1 minute.
Once you leave it takes 2.5 minutes to get to the first island in OOT (excluding zone time).
You stay stopped at the first island for 1 minute.
Once you leave the first island it takes 4.5 minutes to get to Erollisi island.
You're docked at Erollisi island for 1 minute.
From Erollisi island to Butchblock docks it's 1.75 minutes (excluding zone time).

From Freeport dock to Butchblock it is approximately 11 minutes, 45 seconds; let's call it under 12 minutes.

The time from Butcherblock to Freeport might differ because it takes a different path, but should be very close. So a round trip in less than 30 minutes.