Shame about Surabaya, there are just so many targets around Java and not nearly enough fish, I was going to look for the invasion force but the Takoa's were to tempting. I also had ABDA on my sonar so I could keep track of where they were
I think a few days prior to the battle you can find the 2 Takoa's and a single escort NNE of Jakarta around that good size Island. I don't have the coordinates though.
Found these 2 running along the coast East of Bantam