ferry schedule

Hi,

I%26#39;m planning my first trip to Indonesia this June, and want to visit Camp Leakey to see the orangutans. I%26#39;m be landing in Java, either Jakarta or Yogyakarta, and am trying to find a schedule for the Pelni ships that sail to Kumai in Borneo. I found the Pelni website, but they only have routes not schedules.

Is this something I can book ahead or do I have to wait till I get there?

I want to take a ship because 1) I think it would be fun and 2) I%26#39;m a little worried about flying because it would have to be on an Indonesian airline, and as I understand it they don%26#39;t meet international safety regulations. Or am I wrong and some of them are okay?

Any advice from anyone who%26#39;s been to Camp Leakey with details of how you got there would be much appreciated!

Thanks,

Leslie