All Events, Closures and Refurbishments at Disneyland during April and December of 2017 and 2021

April 2017

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.
Sep. 11 - Sep. 15Paradise Pier Hotel : HotelsParadise Pool and Spa Closed for refurbishment
Jan. 02 - May. 26Hollywood Land : Disney California AdventureNew Guardians of the Galaxy theme for the Tower of Terror The Tower of Terror will be re-imagined into a new Guardians of the Galaxy - Mission: BREAKOUT! attraction, scheduled to open on May 27,2017
Jan. 08 - Spring 2017Grand Californian : HotelsGrand California Pool Area Refurbishment All pools at the Grand Californian are closed while the entire pool and cabana area is refurbished. To minimize guest disruption, any activities that may create noise will not start before 9:00 a.m. Guests may use the pools and waterslides at the Paradise Pier Hotel and the Disneyland Hotel. Shuttle service from the entrance to the Grand Californian to the other resorts is available for those wishing to use the pools.
Jan. 08 - Fall 2017Grand Californian : HotelsRoom Refurbishments Rooms at the Grand Californian will be undergoing refurbishment through the fall of 2017.
Jan. 20 - Aug. 20Disneyland Park : Disneyland ResortMain Street Electrical Parade The Main Street Electrical Parade moves from Florida to California for a limited encore engagement at Disneyland in 2017. The parade was originally scheduled to run until June 18, but has been extended through August 20.
Feb. 03 - End date not yet announcedDisneyland Park : Disneyland ResortRemember...Dreams Come True The Remember...Dreams Come True fireworks show, which celebrated Disneyland's 50th anniversary, returns for weekend performances starting February 3. The show is expected to continue through the spring season.
Feb. 06 - Apr. 27Fantasyland : Disneyland ParkMatterhorn Bobsleds Closed for refurbishment and addition of Fastpass.
Feb. 24 - End date not yet announcedFantasyland : Disneyland ParkRed Rose Taverne For a limited time, the Village Haus Restaurant in Fantasyland has been transformed into the Red Rose Taverne, with a menu and decor inspired by the new live action Beauty and the Beast movie.
Mar. 10 - Apr. 16Disney California Adventure : Disneyland ResortDisney California Adventure Food and Wine Festival The expanded Food and Wine Festival will include even more Festival Marketplaces to enjoy this year, plus enhanced Festival-inspired menus at existing restaurants and eateries. Guests will enjoy culinary experiences created for the whole family, including a variety of food, beverage and lifestyle seminars, demonstrations and presentations. The Festival will also feature ticketed events, such as culinary demonstrations, beer, wine and spirit seminars, premium dining events and demonstrations by celebrity chefs such as Guy Fieri, Robert Irvine, Duff Goldman and Keegan Gerhard.
Mar. 16 - End date not yet announcedNew Orleans Square : Disneyland ParkPirates of the Caribbean Attraction 50th Anniversary To celebrate the 50th anniversary of Pirates of the Caribbean, special food and beverage items, pirate-themed entertainment and exclusive merchandise will be available starting on March 16. Participating restaurants include Blue Bayou, Cafe Orleans, Royal Street Veranda, Mint Julep Bar, Harbour Galley, and churro cart.
Apr. 01 - Apr. 16Resort Wide : Disneyland ResortEgg-stravaganza The popular egg-themed scavenger hunt will take place from April 1-16, 2017, at Disneyland park, Disney California Adventure park, and Downtown Disney District. Maps are $5.99, and can be purchased at select locations in each area. Maps, completed or not, can be redeemed for a character-themed Easter egg.
Apr. 20 - May. 31Hollywood Land : Disney California AdventurePirates of the Caribbean - Dead Men Tell No Tales Sneak Peak The preview of the new Pirates movie is being held in the Sunset Showcase Theater. There is a display of props and costumes in the lobby.

December 2017

Feb. 24 - End date not yet announcedFantasyland : Disneyland ParkRed Rose Taverne For a limited time, the Village Haus Restaurant in Fantasyland has been transformed into the Red Rose Taverne, with a menu and decor inspired by the new live action Beauty and the Beast movie.
Aug. 2015 - May. 31Disneyland Park : Disneyland ResortStar Wars: Galaxy's Edge The 14-acre Star Wars-themed land that was announced during the 2015 D23 EXPO opens at Disneyland on May 31.
Aug. 21 - Dec. 20Pixar Pier : Disney California AdventureGoofy's Sky School Closed for refurbishment
Nov. 03 - Jan. 07a bug's land : Disney California AdventureSneak Peek of "Coco" A sneak peek with enhanced effects of the film "Coco" will be shown in the "It's Tough to Be a Bug" Theater. The movie opens in theaters on November 22.
Nov. 10 - Jan. 07Resort Wide : Disneyland ResortHolidays at the Disneyland Resort Returning favorites during the November 10, 2017 to January 7, 2018 holiday celebration include "A Christmas Fantasy" Parade and "Believe...in Holiday Magic" fireworks at Disneyland and "World of Color - Season of Light", "Viva Navidad!", and "Festival of Holidays" at Disney California Adventure.
Nov. 10 - Jan. 07Disney California Adventure : Disneyland ResortFestival of Holidays Returns for the 2017 holiday season with special entertainment and food and beverage kiosks celebrating holiday traditions around the world.

April 2021

May. 30 - No details availableDowntown Disney : Downtown DisneyDowntown Disney West End Closures The following Downtown Disney locations closed in preparation for the construction of a proposed new hotel which has since been canceled. No details on what might be going into the now available retail spaces.
 
AMC Theaters
ESPN Zone
Rainforest Cafe
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.
Mar. 18 - April 5Disney California Adventure : Disneyland ResortA Touch of Disney Disneyland's "A Touch of Disney" event is a separately ticketed event in Disney California Adventure running Thursdays through Mondays from 12PM-8PM.

December 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. 9Disneyland Park : Disneyland Resort2021 Disney Merriest Nites
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.
Nov. 14, 2021 - Jan. 9, 2022Disney California Adventure : Disneyland Resort2021 Disney Festival of Holidays at Disney California Adventure