I came across a January 1950 article about “Pontos de namoro no Rio de Janeiro” (Places to date in Rio), and although it isn’t entirely focused on Rio, I thought I’d extract the interesting parts, which I’ll attempt to expand upon. The word “date” here refers more to making out and/or being affectionate.
In the section on how to date in secret,
Right after the Radio Patrol (emergency police patrol, circa 1948) showed up, it wasn’t possible anymore to even hold someone’s hand without running the risk of being arrested.
In the section on the best dating spots,
Dating in a small city is one thing; in a big one, it’s another. The guys in Rio know this. Here, love is distributed, according to the social condition of the couple, via cinemas, public transport, beaches and streets. But dating on the street is the most important. In the opinion of those in-the-know, the adequate quintessential neighborhood for honest dating is Botafogo. […] the neighborhood, once called aristocratic, was always said to be a great place for love. Its streets lined with old houses and trees, at night, allow for conveniently dark areas on certain walls, and these, naturally, become full of couples. They are decent, calm and poetic places. Showing themselves useful, at times, due to shadows that extend for about five meters, perfectly fit for five couples. Those who pass by hear nothing. They seem mute. The most one can see are mouths that are glued together. The neighbors never call the Radio Patrol, which apparently no longer deals with this kind of thing.
It seems that the best dating spots in Rio are varied. Meier, when speaking of the suburbs, comes in first as the most preferred. To date in Meier is good, even if he and she come from different (train) stations. The streets there are calm, remote and full of dark spots. Not all stations have this. Madureira, for example, isn’t good for dating. The streets are without vegetation and are dangerous – there are bad people there who attack couples.
But this is from one side of the suburbs, from the other, the most credentialed is Penha, where the streets are duly calm. Couples from several of Leopoldina’s stations make it their meeting place.
Dating in Copacabana is always unattractive. In truth, couples from Copacabana kiss unabashedly. No one really cares. [There’s a part that’s hard to read, but that’s the end].