getting exec lounge access without exec room?
I have a trip to Hilton Place Sorrento coming up. Seems an amazing place (and got it for amazing price, pointwise).
They seem to have two lounges, at two tiers. I asked for about an upgrade to the executive lounge (which is supposed to be amazing, has booze all day and its own pool) as a Diamond, and they said "they have 200 diamonds coming" and would need to upgrade to exec room (200 eur/night...)
I am reasonably new to diamond, I have been at a few stays where did not get the exec room but they still gave me lounge access.
What is my best strategy to get access to this lounge (without paying too much, or anything)