Thought this info may useful to anyone who flies from IGP airport (Argentina side) on Aerolineas Argentinas
​​​​​, LATAM, Norwegian etc. which is the closest airport to Iguazu Falls.

PP app currently shows the lounge as post-security but in fact it is before security and not easy to find. The security lady checking BPs made me call the lounge for an escort. You have to ask or you can go to end of checkin desks (ie past LATAM counter) where you will find a door. Go thru it to stairs or elevator to second floor where you come out just before security checkpoint. VIP lounge entrance is clearly marked, they ask for your passport and BP.

Staff is wonderful and will offer to bring you food though the selection is pretty limited: ham sandwiches, potato chips, cookies etc. also have coffee, tea, canned soft drinks, wine and bottled water. There is a,flight monitor. Can count the # of patrons on one hand this afternoon.

Overall about what you would expect for a small airport - nothing fancy but a nice respite from the masses and the construction zone aka rest of airport that is undergoing renovation.