sorry I missed your comment in my blog (http://sapijalanjalan.blogspot.com/2009/10/getting-around-derawan-island-is-so.html)
Seeing that you’ve put a post about Balikpapan, I take it that maybe you’ve been to Derawan? so sorry..
but just in case … here’s the answers to your questions..

- speed boat Tanjung Batu – Derawan return = Rp 300,000 / boat

- fishing boat for island-hopping; Derawan-Kakaban-Sangalaki = Rp 900,000 / boat

- speed boat for island-hopping; Derawan-Kakaban-Sangalaki = Rp 750,000 / boat

the complete info on budgets you can find here http://tinyurl.com/y9d2gkn
Look for the “Spend” section :)

and yes, we arranged it all initially with Mr. Kadek

So sorry for the delays..