So this article is about two locations in Japanese, or one in the dub. However, I think there is an alternate interpretation based on what the dub gives us that is consistent with the Japanese version.
So on Pokémon.com, the location in Beauty and the Beach is referred to as Acapulco, while the location in Tentacool
is Hutber Port. What we can do is say that Porta Vista is a location encompassing the two other locations, but has no Japanese name. In the Japanese version, the two locations are demonstrated to be close to each other, so I think this is a reasonable interpretation.
So ultimately, my suggestion is to have three pages: Porta Vista (encompassing both), Acapulco (EP018's location), and Hutber Port (EP019's location).