We're almost through the Torres Strait and hoping to reach the Arafura Sea this afternoon, as long as we don't have to struggle against more tide. We had a nice ride last night with a few extra knots of speed, but we're paying the price for that now. Yesterday we had a couple of interesting encounters. First, we had some visitors who flew over and announced themselves as ABF (Australian Border Force). And we had to quickly check in with them and confirm our last port, next port and registration number. Interestingly we've been having issues with authorities not being able to see the name of the boat when they check our AIS as for some reason its not transmitted. ABF knew the name! Then, we had some other visitors who swam around but didn't announce themselves – they appeared to be false killer whales. It's a little unnerving navigating through the Torres Strait. There are scattered reefs and islets for hundreds of miles, and we're essentially using a tablet ...