Here we list the basic descriptions -- or "what is is" -- each attraction at Tokyo DisneySea:

Tokyo DisneySea What it is
Attraction What It Is
20,000 Leagues Under the Sea Simulated submarine ride
Aquatopia Like the Tea Cups, but a boat ride
Ariel's Greeting Grotto Disney Character Meet and Greet
Ariel's Playground (Temporarily Closed - Reopens in Unknown) Detailed walkthrough and playground
Big Band Beat Stage show with Disney characters
Big City Vehicles Scenic car ride
Blowfish Balloon Race Suspended "blowfish" swing around a central axis
Caravan Carousel Double deck merry-go-round
Disney Light the Night Fireworks show
DisneySea Electric Railway (American Waterfront Station) Scenic tram ride to Port Discovery
DisneySea Electric Railway (Port Discovery Station) Scenic tram ride to American Waterfront
DisneySea Transit Steamer Line (American Waterfront Dock) Scenic boat ride around the park
DisneySea Transit Steamer Line (Lost River Delta Dock) Scenic boat ride around the park
DisneySea Transit Steamer Line (Mediterranean Harbor Dock) Scenic boat ride around the park
Flounder's Flying Fish Coaster Small roller coaster
Fortress Explorations (Temporarily Closed - Reopens in Unknown) Insanely detailed walkthrough with interactive elements
Indiana Jones Adventure: Temple of the Crystal Skull Motion-simulator dark ride
Jasmine's Flying Carpets Elaborate midway ride
Journey to the Center of the Earth Dark ride with high-speed thrills
Jumpin' Jellyfish Parachute ride
The Leonardo Challenge Self-guided interactive walkthrough.
The Magic Lamp Theater 3D movie mixed with live stage show
Mermaid Lagoon Theater (King Triton's Concert) Stage show that takes place in the air
Mickey & Friends Greeting Trails Disney Character Meet and Greet
My Friend Duffy Stage show with Disney characters
Nemo & Friends SeaRider Underwater simulation ride
Raging Spirits (Temporarily Closed - Reopens on December 19, 2021) Small painful roller coaster
¡Saludos Amigos! Greeting Dock Disney Character Meet and Greet
Scuttle's Scooters Midway ride
Sindbad's Storybook Voyage Indoor boat ride
Soaring: Fantastic Flight Flight-simulator ride
Tower of Terror Indoor thrill ride
Toy Story Mania! 3-D ride-through indoor shooting gallery
Turtle Talk An interactive animated film
Venetian Gondolas Scenic boat ride
Village Greeting Place Character Meet and Greet
The Whirlpool Midway ride

"What It Is" at Other Parks