"It was a waterfall where the water was falling upside down."
— Snuffy

While exploring, Snuffy notices something he's never seen before, and considers it to be an "upside down waterfall". Jay Jay doesn't think such a thing exists, until Brenda reminds him that he should believe Snuffy rather than doubt him, as maybe he is true after all.


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Snuffy says he saw an upside down waterfall, to his friends' disbelief.

On a beautiful summer day, Snuffy flies to Tarrytown National Park to enjoy its nature. While exploring though, he suddenly comes upon something he never heard of, and is surprised.

Back at Tarrytown Airport, Jay Jay and Tracy want to hear about what Snuffy witnessed. Snuffy says he doesn't know what it really is, and that it looked like an "upside down waterfall", a waterfall where the water runs up instead of down. Jay Jay is unconvinced and states there is no such thing as one, to which Snuffy disagrees, and is not kidding. Jay Jay says he should take them to the scene of the witness, hence they cannot believe something unless they see it, and Snuffy agrees.

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Jay Jay and Tracy are at the scene of the upside down waterfall, but they don't see anything.

Snuffy leads Jay Jay and Tracy back to Tarrytown National Park, to the scene of where he witnessed the upside down waterfall. But when he shows where he saw it, nothing happens, and the jet planes don't believe him, especially Jay Jay. Snuffy is shocked that they didn't see it, and Jay Jay again says there's no such thing, whilst Snuffy disagrees. Jay Jay decides to show Snuffy something, and has the others follow him.

Jay Jay's final "And so did all the water" UDW

Jay Jay singing "Up Is Up".

In the air, Jay Jay shows Snuffy the directions of up and down. When finished, Snuffy now knows the difference, but he still says the water in the waterfall was running up, not down. Tracy decides to show Snuffy a waterfall, where the water is running down like it's supposed to. Snuffy states the waterfall was like the one he saw, but once again, says the water was running up instead of down, frustrating her. Jay Jay thinks Snuffy is still confusing up with down and explains about it in song. Snuffy reluctantly agrees with him, but again says he saw an upside down waterfall. 

Jay Jay, completely frustrated with Snuffy, explains the whole story to Brenda at her workshop. Brenda says to him that though it might seem Snuffy is wrong, but sometimes people actually see something new and different, and since it's new, it's hard to describe. She tells Jay Jay that maybe instead of doubting Snuffy, he should believe him, and if he says he saw an upside down waterfall, then he might be right. Jay Jay decides to take her advice and points out that Snuffy is his friend, and he should've believed him all along.

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The upside down waterfall is revealed!

Later, Jay Jay scans the ground for any sign of Snuffy's discovery, but sees nothing. He then decides to return to the spot where Snuffy witnessed the upside down waterfall, and when he does, he sees a spout of water spraying out from a hole in the ground. Completely surprised, Jay Jay finds out Snuffy was right.

Jay Jay goes back to the airport and tells the others that Snuffy was right, and there actually is an upside down waterfall. He takes them back to the scene of the witness and shows it to them, and Snuffy says he told them so. Brenda now understands why the water is running up instead of down: this is not a waterfall at all, but a geyser, when the water underground gets so hot that it makes steam, and it spurts out. Because it didn't explode before, the water has to take a rest underground as it heats up.

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Jay Jay vows he'll never doubt Snuffy again from this day fourth.

After Jay Jay promises from now on he's going to believe Snuffy, Brenda points out that no one has witnessed this geyser before. Since Snuffy is the first to discover it, she names it "Snuffy's Geyser" in his honor. Snuffy is flattered, and the kids decide to fly around it. Brenda waves goodbye, and Jay Jay makes a joke out of her farewell and the geyser before singing his apology.

Jay Jay never again doubted Snuffy from this day forward, and knew there are a lot of new things to discover, with geysers being one of the best.


(Snuffy takes Jay Jay and Tracy to the site of the "upside down waterfall", but they don't see anything.)

Tracy: Jay Jay, I-I don't see anything, do you?
Jay Jay: Uh-uh.
Snuffy: But...but I'm sure it was here! An upside down waterfall!
Jay Jay: Snuffy, there isn't any such thing.
Snuffy: Yes, there is!

Jay Jay: No, there isn't! There can't be!
Jay Jay: So, the water in that waterfall was running down, right?

Snuffy: Nope, it was running up! It was an upside down waterfall!

(Jay Jay growls)
(Tracy shows Snuffy a waterfall.)

Tracy: Now, that's a waterfall. And which way is the water falling? Up, or down?
Snuffy: Mmm, the water's falling down.
Tracy: Correct. The water's falling down. And that waterfall is just like the one you saw, right?
Snuffy: Right. Except the water was falling up, instead of down.
Tracy: Ohhhhh...Snuffy!!
Jay Jay: Snuffy, I think you're still confusing up with down.
Snuffy: Really?

Jay Jay: Snuffy, listen to me, I'm gonna try to explain something. (Begins to sing "Up Is Up")
(Jay Jay finishes singing "Up Is Up")

Jay Jay: Jill went up, Jack came down, Snuffy! And so did all the water!
Snuffy: Um...okay, Jay Jay, but I still saw an upside-down waterfall.

Jay Jay and Tracy: SNUFFY!
Brenda: Bye-bye, guys!

(Later in the air)
Jay Jay: Not "bye-bye guys," it's "hello, guys-er!"
(Jay Jay, Snuffy and Tracy laugh.)
Jay Jay: Hey, Snuffy, I'm really sorry. (sings) You were right little guy, the water did fall high. You saw what you saw, you would never lie.

Jay Jay, Snuffy and Tracy: Now we'll all zoom up 'til we touch the sky...and so will all the water!


  • The plot of this episode appears to be a reversal of the one from "A Trip to Skylandia", since in that episode, the lesson was you don't have to see something to believe it. Here, it's the other way around.
  • Moral: You should always believe your friends, even if what they're saying doesn't seem to make sense.

In Other Languages

Language Name Meaning
French Rencontre avec des Geysers Meeting With Geysers


  • In the song, when Jay Jay makes a "Jack and Jill" reference, he states that Jill went up the hill and Jack fell down, when the rhyme actually states both Jack and Jill went up the hill, then Jack fell down the hill, and Jill fell down, too. He might be exaggerating.
  • In "Super Sonic Jay Jay", Jay Jay says the wind tickles his tummy when he flies upside down; yet during the song, he flies upside down in one verse and shows no sign of being ticklish.


Snuffy singing Up Is Up UDW

Upside Down Waterfall image gallery


Jay Jay the Jet Plane Main Series

Picture Day/Tracy's Song | Hide and Seek/Big Jake's Birthday Surprise | Catch the Buzz/Grumpy O'Malley | Snuffy's 1st Day of School/Super Sonic Jay Jay | Jay Jay and the Stars at Night/Hero Herky | Wing Wigglin/Tracy's Tree | Super Loop-De-Loop/Jay Jay's Bad Dream | Evan Gets His Wings/Snuffy Sees the Big Picture Switch Around Day/Snuffy's Missing Friend | Missing You/Tippy Toppy Peak | Tracy's Treasure Hunt/Jay Jay's New Wheels | Jay Jay's Christmas Adventure - Part 1/Jay Jay's Christmas Adventure - Part 2 | Babysitting Blues/Jay Jay Earns His Wings | Herky Jerky/Upside Down Waterfall | I'm Being Followed By The Moon/Something Special | Plane Of A Different Color/Hiccup Havoc | And That's The Tooth!/Big Jake's Team | I Love Your Funny Face/Snuffy's Rainbow | The Buddy System/The Great Tarrytown Black-Out | Jay Jay Meets The Cloud King/The Merit Badge | Are We There Yet/Problem In Pangabula | Jay Jay's Dinosaur Hunt/Dough-Nutty | Snuffy Discovers The Ocean/Jay Jay's Speedy Delivery | Dog Gone Doggy/Herky's Hat Chase | The Three Little Planes/I'm Swamped! | Old Oscar Leads The Parade/Revvin' Evan's Day | Spending Time with Big Jake/The New Plane | Tracy's Shooting Star/Upsy Downosis | The Opposites Game/Tracy's Sonic Boom | Jay Jay's Butterfly Adventure/The Singing Meadow | Jay Jay Meets Captain Hightower/Tracy's Snuggly Blanket | Fire Engine Evan/Tracy's Candy Catastrophe | Tuffy the Tiny Tow Truck/Snuffy's Snowman | Tuffy's Buried Treasure/Snuffy's Thanksgiving | Snuffy and the Colors of Fall/Snuffy's Birthday Surprise | A Trip to Skylandia/Brenda's Mother's Day | Tuffy's Trip to Pangabula/Tuffy's Adventure in Pangabula | Jay Jay's Winter Parade/Snuffy's Seasons | Jay Jay and the Magic Books/The Counting Game | Concert Day at Tarrytown Airport/Snuffy's Favorite Color