H! Just arrived from PVG and in the NS lounge having breakfast now, thank you for the tip. No resistance from the lounge staff on entry.

Flight to MAD is at 16H40 the last early morning bank of non Schengen arrivals is the much delayed 06H30 from NRT, and then a pause until the 1045 from Dallas. Plan is to head to passport control at 7H30 after the Narita pax has done their passport control, and then head into town by 9H30 (sunrise?) and then spend 2-3 hours in town and be back in airport by 1400. Does the Schengen J lounge serve the same lunch all day or will lunch be taken away by 14H? Any recommendations on where to walk around in Helsinki for 2-3 hours? Thank you!