Thank you for all your advices. I feel reassured about the current.
I narrow down to two liveaboard for now, the Blue Manta and Tiare. I do not see any review or comment of the Tiare in scubaboard, but they seems to have nice review and experienced in RA. Anyone tried this boat in the past?
I also wonder if there is something to do in Sorong? My plan was to arrive a day before (to avoid any travel issues or delay). And take a return fly a day after the end of the cruise (otherwise the flight is early in the morning and I will have to skip the last dives on the day before the boat return to Sorong). Unfortunately their is no convenient flight the day after, so I will need to stay two nights in Sorong.
I also wonder if you recommend to take the Nitrox option. On both boat is available but with a surcharge. How deep are the dive in general?