I've been at the shore for the past couple of weeks, with one more to go. Lots of family the first week and a half (oddly, I'm the only guy) - just my wife and I now. I like it both ways. Anyway, I've shot mostly with the X-Pro and EM-5, but have done a few shots with the GRD3 and even one with the iPhone. I haven't really done much shooting, but have done some. Pretty much all typical beach and family shots.
My wife's aunt:
Determined beach-goers (GRD3):
The iPhone shot:
Gotta have at least one sunset: