Lake Lapcat

Lake Lapcat is an archipelago and dimension dedicated to cats found in Super Mario 3D World + Bowser's Fury, more precisely in Bowser's Fury. It is the kingdom where the whole standalone story takes place. It is an open-world, colorful and cat-themed kingdom mainly inhabited by various colored cats. Because of its theming around cats, nearly all of its elements, including trees, shrubs, flowers, and even the signs, are modified to include feline features.

Lake Lapcat has a grayish blue main color scheme, similar to the Lake Kingdom from Super Mario Odyssey. These colors are also used by many of the area's walls, pillars, and windows. On some walls and ledges, cat-based hieroglyphs can be spotted.

Lake Lapcat is home to a unique power-up, the Giga Bell, which sits on a pedestal.

While Fury Bowser is active, the sky becomes dark and the kingdom rainy, along with having some spike-shaped platforms plunged into the ground and walls. These platforms modify the terrain, and Mario is able to jump on them, sometimes even able to reach higher places.

Islands
Lake Lapcat is split into multiple different islands. Every island contains a lighthouse that is covered in goop. By collecting the first Cat Shine of the island, the goop will be removed and the lighthouse's light will get rid of the goop nearby. Every island contains five Cat Shines that can be collected, one of which is collected by finding the five Cat Shine Shards around the island. Every few islands surround a Giga Bell that can be freed by collecting five Cat Shines.
 * Lakeside Giga Bell (Japanese: はまべのギガベル Hamabe No Giga Beru, "Giga Bell on the beach")
 * Fur Step Island
 * Make the Lighthouse Shine (Japanese: 輝け！灯台のネコシャイン Kagayake! Tōdai No Neko Shain, "Shine on! Lighthouse Cat Shine")
 * Junior's Graffiti Gratitude (Japanese: 甲板にラクガキしちゃえ！ Kanpan Ni Rakugaki Shichae!, "Let's paint the deck!")
 * Fury Shadow on Deck (Japanese: やっつけろ！フューリシャドウ Yattsukero! Furi Shadō, "Get him! Fury Shadow")
 * Five Cat Shine Shards (Japanese: ネコシャインチップを5枚集めろ！ Neko Shain Chippu Wo Gomai Atsumero!, "Collect five Cat Shain chips!")
 * Blast the Fury Blocks (Japanese: 熱線で発掘！ネコシャイン Nessen De Hakkutsu! Neko Shain, "Excavation with heat rays! Cat Shine")
 * Scamper Shores
 * Make the Lighthouse Shine
 * Fury Shadow by the Shore (Japanese: やっつけろ！フューリシャドウ Yattsukero! Furi Shadō, "Get him! Fury Shadow")
 * Key to the Cat Shine (Japanese: カゴのカギを探せ！ Kago No Kagi Wo Sagase!, "Find the key to the basket!")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Pounce Bounce Isle
 * Make the Lighthouse Shine
 * Hurry! Jump High, Jump Fast! (Japanese: 跳ねろ！チクタクアスレチック Hanero! Chiku Taku Asurechikku, "Bounce! Tick-tock athletics")
 * Key to the Cat Shine
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Fort Flaptrap
 * Bully the Cat Bullies (Japanese: ネコドンケツをすべて落とせ！ Neko Donketsu Wo Subete Otose!, "Drop all Cat Bullies!")
 * Blue Coin Bustle (Japanese: 青コインをすべて集めろ！ Ao Koin Wo Subete Atsumero!, "Collect all the Blue Coins!")
 * Show's Over, Cat Magikoopas (Japanese: ネコカメックをすべて倒せ！ Nekokamekku Wo Subete Taose!, "Defeat all the Cat Magikoopas!")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Ruins Giga Bell (Japanese: いせきのギガベル Iseki No Giga Beru, "Giga Bell in the Ruins")
 * Slipskate Slope
 * Make the Lighthouse Shine
 * Blue Coin Bustle
 * Key to the Cat Shine
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Clawswipe Colosseum
 * Clash with Cat Boom Boom (Japanese: 対決！ネコブンブン Taiketsu! Neko Bun Bun, "Showdown! Cat Boom Boom")
 * Cat Pom Pom's Counterattack (Japanese: 逆襲！ネコプンプン Gyakusyū! Neko Pun Pun, "Counterattack! Cat Pom Pom")
 * Final Bout with Cat Boom Boom (Japanese: 決闘！ネコブンブン Kettō Neko Bun Bun, "Duel! Cat Boom Boom")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Trickity Tower
 * So Close Yet So Far (Japanese: 近くて遠いネコシャイン Tsikakute Tōi Neko Shain, "Near and Far Cat Shine")
 * Blue Coin Bustle
 * Hurry! Watch Your Step! (Japanese: 足元注意！チクタクアスレチック Asimoto Tsūi! Chiku Taku Asurechikku, "Watch your step! Tick-tock athletics")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Crisp Climb Castle
 * Make the Lighthouse Shine
 * Hurry! Fly through the Frost! (Japanese: とべ！チクタクアスレチック Tobe! Chiku Taku Asurechikku, "Jump! Tick-tock athletics")
 * Fury Shadow on Ice (Japanese: やっつけろ！フューリシャドウ Yattsukero! Furi Shadō, "Get him! Fury Shadow")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Wasteland Giga Bell (Japanese: あれちのギガベル Arechi No Giga Beru, "Giga Bell in the Wasteland")
 * Risky Whisker Island
 * Fury Shadow Hops to It (Japanese: やっつけろ！フューリシャドウ Yattsukero! Furi Shadō, "Get him! Fury Shadow")
 * Feasting on Fuzzies (Japanese: 食べつくせ！ネコチョロボン Tabetsukuse! Neko Chorobon, "Eat up! Cat Fuzzy")
 * Hurry! Hop behind the Wall! (Japanese: 越えろ！チクタクアスレチック Koero! Chiku Taku Asurechikku, "Get over it! Tick-tock athletics")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Pipe Path Tower
 * Make the Lighthouse Shine
 * Blue Coin Bustle
 * Key to the Cat Shine
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Roiling Roller Isle
 * Make the Lighthouse Shine
 * Hurry! Hot Cross Run! (Japanese: 渡れ！チクタクアスレチック Watare! Chiku Taku Asurechikku, "Get across! Tick-tock athletics")
 * Key to the Cat Shine
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Mount Magmeow
 * Back Off, Cat Prince Bully! (Japanese: 倒せ！ネコドンケツプリンス Taose! Neko Donketsu Purinsu, "Take him down! Cat Prince Bully")
 * Atop Mount Magmeow (Japanese: ネコマンマウンテンの頂上へ Neko Man Maunten No Chōjō E, "To the top of the Mount Magmeow")
 * Hurry! Steer the Switchboards! (Japanese: 進め！チクタクアスレチック Susume! Chiku Taku Asurechikku, "Move! Tick-tock athletics")
 * Five Cat Shine Shards
 * Blast the Fury Blocks
 * Lucky Isle
 * 1st Lucky Shine
 * 2nd Lucky Shine
 * 3rd Lucky Shine
 * 4th Lucky Shine
 * 5th Lucky Shine

Cat Shines
In addition to the ones found on the islands themselves, there are also 35 individual Cat Shines scattered around Lake Lapcat as a whole. While each of them are counted individually and they are all labeled as from Lake Lapcat, the Cat Shines are usually found within a certain Giga Bell sector.

Lakeside Giga Bell

 * Climb to the Shine: Cat Mario is needed to obtain this Cat Shine. In between Pounce Bounce Isle and Fort Flaptrap, there is an island with a Cat Wheel that Cat Mario will need to spin to raise a platform, and then climb the platform to reach it.
 * Shoreside Rabbit Plays Tag
 * Hurry! Dash and Dive!
 * Lost Kitten by the Shore: Obtained by bringing a baby calico cat back to its mother, who sits by the Giga Bell. The baby cat is found on the other side of the Giga Bell.
 * Bounce and Trounce in the Clouds
 * Toad Brigade: Lost Leader: Can only be obtained after the story is completed. Near the gate to Scamper Shores, Captain Toad can be seen being chased by a bunch of Cat Biddybuds. Once all of them are defeated, Captain Toad will award the Cat Shine.
 * Plessie Medal Collector
 * Plessie Medal Catcher

Ruins Giga Bell

 * Ruins Rabbit Plays Tag
 * Go with the Floe
 * Hurry! Slide through the Sky!
 * Dash and Smash in the Clouds
 * Slippery Skirmish
 * Gazing Down at the Islands
 * Hurry! Swim and Slide!
 * Cold Cove Combat
 * Lost Kittens near the Ruins
 * Lake Rabbit Plays Tag
 * Toad Brigade: Stuck under the Slope
 * Toad Brigade: Cuddly Castaway
 * Plessie Medal Mania

Wasteland Giga Bell

 * Footprint Free-for-all
 * Spin, Scramble, Shine
 * On the Floodgate's Edge
 * Hurry! Climb the Falls!
 * Gazing Over the Falls
 * Surprise Prizefight
 * Jump and Thump in the Clouds
 * Wasteland Rabbit Plays Tag
 * Lost Kittens in the Wasteland
 * '''Shining on a Hidden Isle
 * '''Hurry! Slip to the Shine!
 * '''Gazing Down at Lava
 * Toad Brigade: Hot Pursuit
 * Plessie Medal Master

Collectibles
Lake Lapcat features Cat Shines, collectibles that are scattered across all the kingdom, similar to Power Stars, Shine Sprites and Power Moons. These shines are used to awaken the Giga Bell's power, in sufficient quantities. The associated lighthouses on each island are cleansed of goop once a Cat Shine is collected. Five Cat Shine Shards also appear per island, which give a Cat Shine once they are all collected. Coins also appear throughout Lake Lapcat.