From Bulbapedia, the community-driven Pokémon encyclopedia.
Porta Vista is a location exclusive to the Pokémon anime. It is located on the Island of the Giant Pokémon. It contains two cities, Acapulco (Japanese: アオプルコ Aopulco) and Hutber Port (Japanese: ハトバポート Hatoba Port), which appeared in Beauty and the Beach and Tentacool & Tentacruel, respectively.
The fact that the two different towns were referred to as Porta Vista in the dub is a side effect of Beauty and the Beach being initially pulled from the rotation. Without that episode in the rotation, the dub portrayed a wide shot of Acapulco from the prior episode to lead into the inside of Hutber Port in the next episode, both of which were called Porta Vista to attempt to conceal any plotholes. When the missing episode was finally dubbed, the towns remained combined to avoid any huge continuity errors between it and the episodes surrounding it.
Acapulco (Japanese: アオプルコ Aopulco) is the town featured in Beauty and the Beach. It is based on Acapulco, complete with beaches, sunny skies, and a huge ocean. It is a very popular tourist destination, and it was also the setting for many different adventures in the anime.
Brutella and Moe both own restaurants in Acapulco. Ash and his friends had to help rebuild Moe's dock when they crashed their boat into it. Unfortunately for Moe, Brutella's restaurant was more successful, which threatened to drive his restaurant out of business. With the help of Ash and his friends, Moe was able to bring his business sales back up. In the end, Brutella's restaurant was destroyed by Team Rocket's Gyarados submarine.
Acapulco also held a beauty contest, in which Misty, Gary and his cheerleaders, Jessie, and even James participated in.
The name "Acapulco" comes from the Pokémon.com summary of the episode it was featured in and the two following episodes.
Hutber Port (Japanese: ハトバポート Hatoba Port) is the town featured in Tentacool & Tentacruel.
Here, Brutella's cousin, Nastina, wanted to build a hotel in the middle of the ocean. However, the Tentacool that lived there were being disturbed by it. Nastina hired Team Rocket to get rid of them, but all they ended up doing was forcing one of the Tentacool to evolve into a Tentacruel and grow it to several hundred feet tall. It began destroying all of Hutber Port until Misty convinced it that not all humans are like Nastina, and that all construction would cease on the hotel.
This is also the location where Misty caught her Horsea.
The name "Hutber Port" comes from the Pokémon.com summary of the episode. It was also used on the Topps Trading Card for the episode.
Pokémon seen in Hutber Port