You can track some ships online via http://www.marinetraffic.com/ais/

Pacific

Borneo

Emergency 2182   4125   6215   8291  12290  16420 

BRUNEI BAY RADIO's assigned land/marine simplex frequencies are:

           4042   and   8170 

Supplementary maritime simplex frequencies used if required:  

          6227  8294  12359   16534   18840   22168   25106   

Maritime simplex frequencies assigned to yachting events, used if required:

         4483 and 6516 

Fiji
Initial announcements - 2182, 6215.5
WX broadcast - 4372, 8746 at local times: 0803, 1203, 1603, 2003hrs
ITU CH.406 - 4372 / 4080 & ITU CH.810 - 8746 / 8222
Taupo Radio New Zealand also broadcast wx for Fiji
Special WX (hurricane, etc) are also broadcast on RNZI and RAUS

Indonesia
2090, 2690, 3180

Nauru

Niue
HF SailMail node: 4168, 6241.5, 8308.5, 12373.5, 16563.5, 18856.5

Solomon Islands 

Tahiti 

Tonga
2182, 6215

Vanuatu

Vanuatu weather broadcasts are 4385.30 and 4090.90 at 0900 and 1600 local time.