Within Cambodia, you can travel between Kampot and Koh Rong, Koh Rong Samloem and Koh Sdach by sea.
SihanoukVille, Cambodia also has a tourist port to the Islands.
SihanoukVille Tourist Port to the Islands.
And also in Kep, Cambodia and Koh Kong, Cambodia you can get to their local islands.

The Koh Rong Port
The Koh Sdach Port
Phu Quoc, Vietnam
(no boat yet, but you can get there by land and sea from Kampot in half a day. You may need a Vietnamese Visa.)
Book a ferry ticket HERE
