Traveling between Koror- Rock Islands- Carp Island

How easy is it to travel between koror - rock islands and carp islands. Are there multiple ferries per day? Offhand, I cant find an LP guide for this country. Any good sites to look at? Thanks.

Koror-rock islands: you would need to do this by dive/snorkel boat trip. Many boats head out there.

Carp Islands: Since this is a private island, they have their own boat service. http://www.carpislandpalau.com/info.php

Another option: Take the morning boat from Koror to Peleliu (make sure you arrive early--the boat leaves when it is full), then have a local take you to Carp. The islands are right next to each other, and many Carp employees live on Peleliu.