All Closures and Refurbishments at Disney California Adventure or Disneyland Park in Disneyland during April, September and November of 2016 and 2021

April 2016

January 2015 - N/AHollywood Land : Disney California AdventureMuppet*Vision 3D closed indefinitely. The theater has been renamed the Sunset Showcase. From July 1- August 14 the theater will host a preview of Pete's Dragon.
Jan. 04 - May. 01a bug's land : Disney California AdventureIt's Tough to Be a Bug Closed for installation of Jungle Book preview. Preview opens March 18, and will run for an unspecified period of time. The movie opens in theaters on April 15.
Jan. 10 - Jul. 29Frontierland : Disneyland ParkRivers of America Attractions Disneyland Railroad and most Rivers of America attractions (including Fantasmic!) are closed temporarily to make room for the construction of the new Star Wars land. Pirate's Lair on Tom Sawyer Island has re-opened. Fantasmic! opens on July 17. Davy Crockett Explorer Canoes, Mark Twain Riverboat, Sailing Ship Columbia and Disneyland Railroad reopen on July 29.
Jan. 10 - PERMANENT CLOSUREHollywood Land : Disney California AdventureAladdin "Disney's Aladdin -- A Musical Spectacular" closed on January 10, 2016, after nearly 14,000 shows since its debut in January 2003. The story of "Frozen" will take Aladdin's place in an all-new theatrical production opening May 27,2016 at the Hyperion Theater.
Jan. 11 - May. 06Adventureland : Disneyland ParkJungle Cruise Removal of holiday overlay and refurbishment.
Jan. 11 - Apr. 29Tomorrowland : Disneyland ParkAutopia Refurbishment.
Mar. 31 - PERMANENT CLOSUREHollywood Land : Disney California AdventureMad T Party Closed March 30, 2016.
Apr. 01 - May. 04Disney California Adventure : Disneyland ResortPixar Play Parade On hiatus during the Disney California Adventure Food and Wine Festival as the Festival Marketplaces block part of the parade route. Returns May 5, 2016.
Apr. 03 - PERMANENT CLOSURETomorrowland : Disneyland ParkAvengers Super Hero HQ Final Day is April 2. The character Meet-and-Greet, featuring Captain America and Spider-Man, will move to Disney California Adventure starting on April 3.
Apr. 11 - Apr. 14Frontierland : Disneyland ParkBig Thunder Mountain Railroad Refurbishment
Apr. 11 - Jun. 09Pixar Pier : Disney California AdventureSilly Symphony Swings Refurbishment
Apr. 11 - May. 19Tomorrowland : Disneyland ParkDisneyland Monorail Closed.
Apr. 18 - May. 06Fantasyland : Disneyland ParkMatterhorn Bobsleds Refurbishment
Apr. 18 - PERMANENT CLOSUREHollywood Land : Disney California AdventureFor the First Time in Forever - A Frozen Sing Along Celebration Closes April 17. The new "Frozen - Live at the Hyperion" musical starts May 27.
Apr. 18 - May. 17Grizzly Peak : Disney California AdventureGrizzly River Run Refurbishment

September 2016

Jan. 10 - Jul. 29Frontierland : Disneyland ParkRivers of America Attractions Disneyland Railroad and most Rivers of America attractions (including Fantasmic!) are closed temporarily to make room for the construction of the new Star Wars land. Pirate's Lair on Tom Sawyer Island has re-opened. Fantasmic! opens on July 17. Davy Crockett Explorer Canoes, Mark Twain Riverboat, Sailing Ship Columbia and Disneyland Railroad reopen on July 29.
Aug. 22 - Sep. 08New Orleans Square : Disneyland ParkHaunted Mansion Short refurbishment to apply the Nightmare Before Christmas overlay for the Halloween and Christmas seasons. Re-opens on September 9.
Aug. 22 - Sep. 29Main Street, U.S.A. : Disneyland ParkGreat Moments with Mr. Lincoln Refurbishment.
Aug. 29 - Sep. 01Hollywood Land : Disney California AdventureTwilight Zone Tower of Tower Refurbishment
Sep. 06 - Sep. 08Tomorrowland : Disneyland ParkHyperspace Mountain Closed for seasonal conversion to Space Mountain Ghost Galaxy. Ghost Galaxy opens September 9, and runs through October 31.
Sep. 06 - Sep. 28Pixar Pier : Disney California AdventureAriel's Undersea Adventure Closed for refurbishment
Sep. 12 - Sep. 14Adventureland : Disneyland ParkIndiana Jones Adventure Closed for refurbishment
Sep. 12 - Sep. 18Toontown : Disneyland ParkDonald's Boat Closed for refurbishment
Sep. 19 - Sep. 21Toontown : Disneyland ParkGadget's Go Coaster Refurbishment
Sep. 26 - Sep. 27Pixar Pier : Disney California AdventureGoofy's Sky School Refurbishment

November 2016

Jan. 10 - Jul. 29Frontierland : Disneyland ParkRivers of America Attractions Disneyland Railroad and most Rivers of America attractions (including Fantasmic!) are closed temporarily to make room for the construction of the new Star Wars land. Pirate's Lair on Tom Sawyer Island has re-opened. Fantasmic! opens on July 17. Davy Crockett Explorer Canoes, Mark Twain Riverboat, Sailing Ship Columbia and Disneyland Railroad reopen on July 29.
Oct. 03 - Nov. 03Critter Country : Disneyland ParkCritter Country Refurbishment All Critter Country attractions and locations, including Splash Mountain, Winnie the Pooh and Friends, Hungry Bear Restaurant, Pooh Corner, and The Briar Patch, are closed for refurbishment.
Oct. 24 - Nov. 09Fantasyland : Disneyland Park"it's a small world" Closed for installation of holiday overlay
Nov. 01 - Nov. 02Tomorrowland : Disneyland ParkSpace Mountain Closed for removal of Ghost Galaxy overlay
Nov. 01 - Nov. 09Adventureland : Disneyland ParkJungle Cruise Closed for installation of "Jingle Cruise" holiday overlay.

April 2021

2019 - Early 2023Disneyland Park : Disneyland ResortMickey & Minnie's Runaway Railway (DLR) The first major Mickey-themed ride-through attraction, is coming to Disneyland’s Mickey’s Toontown in Early 2023 as part of the reimagination of Mickey’s Toontown. The ride will be housed in the El CapiTOON Theater, where Mickey and Minnie are premiering their newest short, Perfect Picnic.
March 14th, 2020 - July 25th, 2022Disneyland Park : Disneyland ResortFinding Nemo Submarine Voyage Finding Nemo Submarine Voyage closed for refurbishment on March 14th, 2020. It will reopen on July 25th, 2022.

September 2021

2019 - Early 2023Disneyland Park : Disneyland ResortMickey & Minnie's Runaway Railway (DLR) The first major Mickey-themed ride-through attraction, is coming to Disneyland’s Mickey’s Toontown in Early 2023 as part of the reimagination of Mickey’s Toontown. The ride will be housed in the El CapiTOON Theater, where Mickey and Minnie are premiering their newest short, Perfect Picnic.
March 14th, 2020 - July 25th, 2022Disneyland Park : Disneyland ResortFinding Nemo Submarine Voyage Finding Nemo Submarine Voyage closed for refurbishment on March 14th, 2020. It will reopen on July 25th, 2022.

November 2021

2019 - Early 2023Disneyland Park : Disneyland ResortMickey & Minnie's Runaway Railway (DLR) The first major Mickey-themed ride-through attraction, is coming to Disneyland’s Mickey’s Toontown in Early 2023 as part of the reimagination of Mickey’s Toontown. The ride will be housed in the El CapiTOON Theater, where Mickey and Minnie are premiering their newest short, Perfect Picnic.
March 14th, 2020 - July 25th, 2022Disneyland Park : Disneyland ResortFinding Nemo Submarine Voyage Finding Nemo Submarine Voyage closed for refurbishment on March 14th, 2020. It will reopen on July 25th, 2022.
Oct. 4, 2021 - Nov. 10th, 2023Disneyland Park : Disneyland ResortTarzan's Treehouse Tarzan's Treehouse will close for refurbishment beginning October 4th, 2021. Disney has revealed that the attraction is being rethemed to an adapted version of the original Swiss Family Treehouse concept that Walt and his Imagineers envisioned in 1962.
Nov. 11 - Dec. 4Disneyland Park : Disneyland Resort"it's a small world" Holiday "it's a small world" Holiday is reportedly closed due to flooding. It is expected to reopen December 4th, 2021.