The Deep End

"" is the 15th episode in Season 1 of Gravity Falls.

Overview
When Mabel befriends a cute merman trapped in the deep end of the public pool, she's determined to return him to his family in the ocean - even though that means her whirlwind romance will come to an end. Meanwhile, Dipper learns that Wendy is a lifeguard at the pool, so he decides that the best way to spend time with her is to volunteer.

Credits

 * Written by:
 * Nancy Cohen
 * Directed by:
 * Aaron Springer
 * Joe Pitt
 * Storyboards by:
 * Erik Fountain
 * David Gemmill
 * With the Voice Talents of:
 * Kristen Schaal - Mabel Pines
 * Jason Ritter - Dipper Pines
 * Alex Hirsch - Grunkle Stan and Soos
 * Dee Bradley Baker - Waddles
 * Matt Chapman - Mermando
 * Linda Cardellini - Wendy
 * Keith Ferguson - Deputy Durland
 * Will Forte - Cute Biker
 * Michael Rianda - Mr. Poolcheck
 * Kevin Michael Richardson - Sheriff Blubs
 * Gregg Turkington - Toby Determined
 * Thurop Van Orman - 'Lil Gideon


 * Additional Voices:
 * Mark Chapman
 * Keith Ferguson
 * Alex Hirsch - Old Man McGucket
 * Michael Rianda
 * Kevin Michael Richardson

Production notes

 * See also: List of allusions and List of goofs.

Character revelations

 * Mabel and Dipper both get their first kisses; however Dipper was giving "reverse CPR".
 * This is the first time we see Sheriff Blubs and Deputy Durland without their hats.

Series continuity

 * This one of several occasions to feature merpeople, others instances including the following:
 * a picture of the Fiji mermaid is seen in one of the pictures at the end of "Made Me Realize."
 * the Fiji Mermaid seen in the Mystery Shack gift shop in "Tourist Trapped" and "The Inconveniencing."
 * Chutzpar mentions the species in "Dipper vs. Manliness."
 * Mabel mentions the gnomes and Dipper thinking they were zombies from "Tourist Trapped."

Trivia

 * After Mermando is freed into Lake Gravity Falls, Mabel runs forward and he leaps over her in the same manner as the famous scene in Free Willy.

Cryptogram

 * The cryptogram in the end credits reads "22-9-22-1-14 12-15-19 16-1-20-15-19 4-5 12-1 16-9-19-3-9-14-1." Once decoded it translates to  "VIVAN LOS PATOS DE LA PISCINA," Spanish for "Long live the ducks in the pool."