I'm flying in C from SFO-FRA on UAL then connecting on LH to FLR. I've got about a three hour layover in FRA, so I thought I'd try to wake up with a shower and try out the UA Arrivals Lounge. What am I in for in terms of customs/etc? Can I just walk directly from my plane into the UA Arrivals Lounge? Do I need to clear security to make my way over to the LH Sen lounge or to the LH gates for my flight to FLR? Just trying to figure out the best course of action given the time I have on the ground in FRA. Help is appreciated.

fz