I'd suggest the refresher - she will feel more comfortable for doing it. Also how much experience did she have before? If it was just a few dives rather than hundreds, then it's even more important that she does it.
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
I totally agree. 40' down is not where you want to discover how rusty you are.Michael Schlink:Refresher at least, if she hasn't dived in a while-but also to consider-how much diving did she do before she stopped diving??!! If it has been more than a couple years and didn't do much diving before that I would recommend going through another OW course. I definately wouldn't suggest she go make a 40' dive.