Dan
Contributor
At a bare minimum, please be sure that you are very competent and confident in deploying a surface marker buoy from depth. Whereas you may be fortunate to dive w/o strong currents, it is more likely that you will and that in the course of a week of diving, you will at some point get separated from your group, dive guide or buddy and will want to be able to handle that confidently and w/o panic. I have friends that were there this past February and wish they had reef hooks and didn't-- so, yes- there are currents. Here is a link to some info on what to expect in terms of sea life, visibility and water and surface temps by month: Socorro Island Overview | Nautilus Liveaboards
What do you think about Nautilus Under Sea? I'm planning to go there in December 2018.
Thanks
Dan