Isn there a ferry between the two Samoas?
Yes, the Samoa Shipping Corporation has a weekly ferry between Apia and Pago Pago (twice weekly during holiday periods). Fares are less than half those on Polynesian Airlines for the same trip. That said, the ferry is extremely basic and the voyage rough, so the vast majority of visitors arrive by air. The flights operate between four and six times daily between the Samoas, costing around US$182 return from Pago Pago or a bit less if you buy your ticket in Apia.