Thailand to Sihanoukville 3

Airline-type seating is available inside the air-conditioned boat but I prefer sitting on top, basking in sunshine and feeling the sea air whistling through my ears! It's a four hour trip to Sihanoukville, including a nice stop on one of the tropical islands. (A bus to Sihanoukville is available from Koh Kong but takes seven hours.)
There are now two boats. The boat leaves Koh Kong at the same time, but the return trip from Sihanoukville departs at 9:30 a.m. daily.
-
I would like to go to the south of Thailand (anywhere south of Bangkok) from Cambodia or Vietnam. I have an old information (2007) about a ferry between Sihanoukville and Chanthaburi (in Spanish).
Does it still exist? Is there any other ferry available?
Oooh nice one, I want to know the answer to this. I know of ferries from Vietnam to Cambodia, but not whether it's possible to get from either of those countries to Thailand on ferry. – Ankur Banerjee♦ Jun 24 at 20:36
-
The ferries between Koh Kong and Sihanoukville ended a few years ago, and the service seems unlikely to return. Between the paving of the southern road, the rise in fuel prices, and the fall in foreign tourism it is no longer economically feasible, and despite the election of the Shinawatra government, tensions between the two countries are high due to various border disputes.
There are fast boats up and down the Mekong. You could take one from Chau Doc to Phnom Penh, then another from Phnom Penh to Tonle Sap, then ground transportation from Tonle Sap to Siem Reap for connections into Thailand, but as far as I know traveling exclusively by water into Thailand from Cambodia or Vietnam via scheduled service is not possible.
 -
No, not by boat. There is no cross border boat (unless you mean cruise ships).
Bangkok- Trad- Koh Kong- S'ville(- Kampot). All by bus or taxi. 

Photo: Janin