The Chupacabra is a Mexican folk legend, (goatsucker) monster who is known to drink the blood of goats. This is why the bartender gives him a goat in a glass when he asks for a drink.

Director Genndy Tartakovsky replaces Jonny Solomon for providing Blobby's blob talk, making Blobby to be the second character in the series to be recast at some point, following Murray.

The scene where Johnny sees a gremlin on the wing of the airplane is a tribute to to classic The Twilight Zone episode, "Nightmare At 20,000 Feet".

Abraham Van Helsing was in his 50's or 60's in the original Dracula novel, published in 1897, which would make him 170 to 190 years old here.

Like with Hotel Transylvania 2 (2015), Keegan-Michael Key replaces CeeLo Green as the voice of Murray, due to Green's arrest. This marks Key's fourth consecutive year in a Sony Animation film, after Hotel Transylvania 2 (2015) as Murray the Mummy, The Angry Birds Movie (2016) as Bird Island's Judge, and The Star (2017) as Dave the Dove.

The name of the cruise ship is The Legacy a double meaning as Ericka sees herself as carrying on the legacy of her great-grandfather Abraham Van Helsing.

Frank says the woman he tries to set Dracula up with is his "right arm's cousin." This was also what Johnny said in the original movie when he was trying to convince Frank that they were related.

The scene in the movie where Blobby gets seasick and creates Blobby Baby was different from the scene in the trailer. In the trailer, Drac and friends react to Blobby getting sick and changing colors, with Drac saying, "Oh no Blobby's gonna puke!" just before Blobby hurls out a baby.

Andy Samberg's fifth Sony Animation movie after Cloudy with a Chance of Meatballs (2009), Hotel Transylvania (2012), Cloudy with a Chance of Meatballs 2 (2013), and Hotel Transylvania 2 (2015).

According to Tartakovsky, he returned after he got an inspiration from a "miserable" family vacation and major inspiration for the film from the Chevy Chase National Lampoon's Vacation movies as the film would take place aboard a cruise ship.

One idea in the first Hotel Transylvania (2012) that was dropped pertained to Johnny being a descendant of Van Helsing, which would have created more conflict between Dracula and Johnny. This movie finally properly introduces the Helsing family into the setting, but makes the descendant Dracula's Love Interest instead.

When Dracula's phone's automated voice hears him incorrectly about "dates" it tells him the date is Friday the 13th which is the day the film was released in theaters July 13th Friday 2018.

First Hotel Transylvania film where the main antagonist is not a monster that has a strong dislike toward humans. Instead, the main antagonist is a human who has a strong dislike toward monsters.

First animated film for Kathryn Hahn, though she had previously done a good amount of voice over work in Animated TV Shows from over the years.

Sony Animation's first theatrical threequel. This does not include Open Season 3 (2010), as that film was released straight to DVD, same said for Smurfs: The Lost Village (2017), which was a CGI reboot to the Smurfs films rather than being another live action sequel.

The cruise ship in the film, the Legacy, bears a very strong resemblance to the Titanic and her sister ships Olympic and Britannic -- the Legacy just has five funnels instead of four like the ships Lusitania and RMS Mauretania, and is rather cartoonishly shorter and fatter than the real-life ocean liners. Fortunately, however, the film takes place in the tropics, so icebergs are not a hazard.

Like with Hotel Transylvania 2 (2015) which released the same year as Jurassic World (2015), Hotel Transylvania 3: Summer Vacation (2018) released the same year as its sequel Jurassic World: Fallen Kingdom (2018).

3rd Collaboration between Keegan-Michael Key and Andy Samberg, after Hotel Transylvania 2 (2015) and Storks (2016).

Mavis was shown reading a magazine with a brochure about the Cruise Ship 'Legacy' in the short Puppy!: A Hotel Transylvania Short' (2017).

In the first movie, Drac said garlic makes his throat swell, and in Hotel Transylvania: The Series (2017) it's shown that vampires exposed to garlic are contagious and must be quarantined, but in this film it actually causes flatulence. However, it was garlic OIL that caused the flatulence. For all we know, straight up garlic does make his throat swell.

Like with the first Hotel Transylvania (2012) which released the same year as Disney's Wreck-It Ralph (2012), Hotel Transylvania 3: Summer Vacation (2018) released the same year as its sequel Ralph Breaks the Internet (2018). And though there was no Wreck-It Ralph film releasing the same year as Hotel Transylvania 2 (2015), it did release the same year as another Video Game Themed film, being Pixels (2015), which was also distributed by Columbia (the distribution label of Sony Pictures Animation films).

First Trailer was shown the same day as the release of The Star (2017), another film by Sony Pictures Animation.

In September 2015, Michelle Murdocca, the film's producer, said before the second film's release that the studio was "talking about number 3 and moving forward and taking the franchise to the next level", but she and director Genndy Tartakovsky would not return, since they were working on Tartakovsky's Can You Imagine? before that project was later shelved. That same month, Tartakovsky revealed that he would not be returning for the sequel, telling TheWrap that "two is enough. I have a lot of other ideas, and I kind of have to express them and have them come out."

In the film, Abraham Van Helsing repeatedly tries to kill Dracula and fails. In the original Dracula novel, Van Helsing succeeds in killing Dracula.

The gremlins resemble the title monsters of the 1984 horror/comedy Gremlins (1984), but their behavior on the plane also calls to mind the, as it were, original "gremlins." Gremlins were once known to the RAF (Royal Air Force) as mischievous imps who sabotage planes. Whenever something went wrong and no one knew why, a gremlin was blamed. During his time in the RAF, author Roald Dahl heard this myth and wrote a story about them, making gremlins famous (or, perhaps, infamous) throughout the world.

The song "I'm in Love with a Monster" from Hotel Transylvania 2 (2015) is heard during the wedding.

The kraken is so far the largest monster in the series.

Like with Hotel Transylvania (2012) which released the same year as The Lorax (2012), Hotel Transylvania 3: Summer Vacation (2018) released the same year as fellow CGI Dr. Seuss film The Grinch (2018).

In June 2016, Sony Pictures Animation also confirmed that director Genndy Tartakovsky would be returning for the third film, after taking a leave of absence to work on the final season of his show Samurai Jack (2001).

The first 'Hotel Transylvania' film not to feature the Columbia Pictures logo before it starts. The logo was notable in the first two, as the figure of Columbia herself turns into Mavis' bat form. This is also Sony Pictures Animation's second theatrical film to not have the Columbia Pictures logo at the beginning, after The Star (2017).

Is the first film in the franchise to not have any characters voiced by Rob Riggle. In Hotel Transylvania (2012) he voiced the Skeleton Husband in the scene when Johnny first witnesses the hotel, and in Hotel Transylvania 2 (2015) he voiced Bela the Bat Monster, the film's main villain who despises humans that used to be with Drac's father Vlad.

A video game adaptation, titled Hotel Transylvania 3: Monsters Overboard has been released for the PlayStation 4, Xbox One, Nintendo Switch and Microsoft Windows on July 10, 2018. On June 21, 2018, Amazon announced it was offering its Amazon Prime members an early showing of the film on June 30 at about 1,000 theaters, similar to fellow Sony release Jumanji: Welcome to the Jungle (2017) the previous December.

Kathryn Hahn and Keegan-Michael Key's second movie together, after Tomorrowland (2015), which released in the same year as Hotel Transylvania 2 (2015), respectively.

Tinkles' disguise fools everyone other than Dennis and Winnie, who were behind the deception, until his hat falls off.

Outside North America, the film is subtitled "A Monster Vacation" instead of "Summer Vacation".

Ericka being a Van Helsing is hinted at during her introduction before it's confirmed, such as when she acts hesitant to touch or get close to some of the monsters, and when she compliments Drac by saying "I'd kill for that skin."

Crystal is based off of Kitty Carroll from the 1940 film, The Invisible Woman.

Jaime Camil's third animated film, after The Secret Life of Pets (2016) and Coco (2017).

Jim Gaffigan's second animated film, after Duck Duck Goose (2018).

Joe Jonas's 2nd voice acting performance in a theatrical film, after Night at the Museum: Battle of the Smithsonian (2009).

This is Sony Pictures Animation's 18th theatrically released feature film.

The second Sony Pictures Animation film to have the "Sony Pictures Animation presents" credit, after Open Season 3 (2010), and the first theatrical one to do so.

This film was released in the United States a week before The Equalizer 2 (2018), which was also distributed by Columbia Pictures.

the scene where Ericka is routinely trying to kill Drac in various ways, all while he's blissfully dancing around the ship to the tune of "24K Magic" by Bruno Mars.

This is the only Hotel Transylvania film to not be in theaters in September and coming out on home media formats in January 2019.

Sony Animation's second film to have a female main antagonist, after The Emoji Movie (2017).

Sony Animation's first theatrical sequel to be subtitled, and third Sony Animation film overall to be subtitled, after The Pirates! Band of Misfits (2012) and Smurfs: The Lost Village (2017).

Not counting the straight-to-DVD sequels of Open Season (2006) and Surf's Up (2007), as well as Smurfs: The Lost Village (2017), Blobby is the third character in a Sony Animation film to be recasted later on in the franchise. The previous two were Murray the Mummy since Hotel Transylvania 2 (2015) and Earl Devereaux in Cloudy with a Chance of Meatballs 2 (2013).

The first teaser trailer was released online on November 16, 2017, one day before the release of fellow Sony Pictures Animation film The Star (2017). The official trailer for the film was released on March 21, 2018. A 95-second sneak peek of the film was released online via Sony Pictures Entertainment's YouTube channel on May 7, 2018.

The first two films are relatively self-contained to the Hotel and the human world. This film ups things to a cruise ship, with more exotic locations such as the Bermuda Triangle.

One of the ships in the Bermuda Triangle is named "Dawn," which is the name of Genndy Tartakovsky's wife.

Including the straight-to-DVD sequels of Open Season (2006) and Surf's Up (2007), this is Sony Animation's 20th Film to be Rated PG by the MPAA, which all Sony Animation films except the mature themed film Sausage Party (2016) were rated.

Wayne and Wanda get tranquilized at one point, and Wanda as always is depicted as pregnant. Hopefully, the tranquilizer serum hasn't caused any harm to her unborn children.

This movie was going to be released on September 21, 2018, but it was pushed forward two months to allow Goosebumps 2: Haunted Halloween (2018) to take that date, though that film would later be pushed back a month to October 12th the same year.

Sunny is the only werewolf pup whose name doesn't start with "W".

When Ericka is going through the hidden temple in Atlantis, with Drac following, and Mavis following him, and cautiously goes down the casam, it is in close comparison to the movie poster for the 127 Hours film.

When the monsters are all playing a version of volleyball on the ship before reaching the first destination, Johnny mentions playing college volleyball for his school, Santa Cruz. " Santa Cruz" refers to one of the public universities in the University of California system, University of California, Santa Cruz or UCSC. Like Johnny, kids at Santa Cruz are stereotyped for being more laid-back and "hippie" like.

When Blobby becomes seasick (Drac says, "Oh, no! Blobby's gonna puke!"), he pukes and the mess he made becomes Little Blobby, resulting in Blobby becoming a father, assuming that's how Blob Monsters are born and how Wendy from Hotel Transylvania: The Series (2017) came about.

Drac saves Abraham Van Helsing's life. Drac had previously saved Ericka's but that doesn't count because he didn't realize that she was technically a villain at the time.