The Disneyland Resort is full of hidden Mickeys all over the place, you just have to know where to look to find them. These are the California Adventure and Disneyland hidden Mickeys that are on rides. You can look for them next time you go on these attractions.
Alice In Wonderland Paint Splatter

Alice In Wonderland is a classic Fantasyland ride in Disneyland. There’s a hidden Mickey that’s a bit tricky to find, but you can find it if you know where to look. There’s a scene with the Queen of Hearts and there are red paint splatters on a green bush. On top of the bush one of the paint splatters is shaped like Mickey. This is on the left side of the ride.
Big Ben On Peter Pan’s Flight

The hidden Mickey on Peter Pan’s Flight is another tricky one to find. When you get to the room with London and Big Ben, look back at Big Ben as you’re passing it and you can see a little silhouette of a full-body Mickey Mouse on the top.
Mickey & Minnie’s Runaway Railway Loading Area

Mickey & Minnie’s Runaway Railway is in Mickey’s Toontown in Disneyland. It is said to have over 500 hidden Mickeys on the ride. They really are everywhere you look if you look closely. The one in the loading area is easy to find if you know where to look. Look up at the beams above you when getting on the ride. The wood has a lot of scribbles in it, but look closely at two of the beams. One says Mickey and one says Minnie.
Mickey & Minnie’s Runaway Railway Ice Cream Cone

When you’re on Mickey & Minnie’s Runaway Railway and get to the room where Peg-Leg Pete is jack hammering, look at the ice cream cone above him. The scoops of ice cream are shaped like a Mickey head.
Mickey & Minnie’s Runaway Railway Fireworks

At the very end of Mickey & Minnie’s Runaway Railway there are fireworks. These fireworks are shaped like Mickey heads. They’re very cute fireworks.
Mickey & Minnie’s Runaway Railway Pipes

There’s a part of Runaway Railway when you go from one room to the next and there are pipes and water off to the right. One of the pipes is Mickey-shaped.
Mickey & Minnie’s Runaway Railway Ticket Sign

One of the first scenes on Runaway Railway has this ticket sign in the middle of the room in front of you. The rolls of tickets are shaped to make a hidden Mickey.
Coconuts On Mickey & Minnie’s Runaway Railway

When you see palm trees on Mickey & Minnie’s Runaway Railway, look at the coconuts on the tops of the trees. Some of the coconuts make hidden Mickeys.
Mickey & Minnie’s Runaway Railway Lily Pads

At the very end of Mickey & Minnie’s Runaway Railway you’ll have the fireworks in front of you, but you should also look out to right at the pond. Some of the lily pads are arranged to make a hidden Mickey. This is one of the newest rides at Disneyland. See all of the newest Disneyland rides here.
Pirates of the Caribbean Barrels

Pirates of the Caribbean is a super fun and lively ride in New Orleans Square in Disneyland. Towards the end of the ride before you go uphill, there are some hanging barrels that make a Mickey.
Mickey Running on Monster’s, Inc. Mike & Sulley to the Rescue

To find this next hidden Mickey you’ll have to go to California Adventure park and ride Monsters, Inc. Mike & Sulley to the Rescue. Towards the beginning of the ride there is a scene from the sushi restaurant. On the right side right after the octopus there is a window that shows silhouettes of people and monsters running by. One of them is Mickey Mouse.
Haunted Mansion Holiday Plates

Haunted Mansion Holiday comes to Disneyland each year for Halloween and Christmas time. When you get to the ballroom scene look at the plates on the table. One plate setting has an extra plate to make it a hidden Mickey.
Haunted Mansion Plates

When Haunted Mansion doesn’t have the holiday overlay, it still has the same hidden Mickey with the plates in the ballroom scene. This was not an original hidden Mickey, but the Cast Members of this ride kept rearranging the plates to make a Mickey and at some point Disneyland let them keep it.
It’s A Small World Holiday Holly Berries

It’s A Small World transforms into It’s A Small World Holiday for the Christmas season. There are tons of holly berries throughout the ride and a lot of them are bunches of three that make hidden Mickeys.
Jingles The Horse On King Arthur Carrousel

King Arthur Carrousel has a very special horse named Jingles. Jingles has a lot of bells on her and some gems that make hidden Mickeys. This is the horse that Mary Poppins rides when she goes on this attraction.
The Little Mermaid Ride Queue Hidden Mickeys

The Little Mermaid ~ Ariel’s Undersea Adventure is located in Paradise Gardens Park in California Adventure. When walking through the ride queue look up at the tops of the fences and railings. There are a lot of circles that look like bubbles and they make some hidden Mickeys.
The Little Mermaid Ride Boarding Area

Right when you board your clamshell on the Little Mermaid ride you’ll need to hurry and look to the right. At the very end of the mural there is a rock and on it you can see a hidden Mickey.
The Little Mermaid Ride Kiss The Girl Scene

The Kiss the Girl scene on The Little Mermaid ride has so many hidden Mickeys all in one area. Look at the frogs on the lily pads. The three lily pads make a hidden Mickey. Also look at the spots on the frogs back. Each frog has two hidden Mickeys from the spots on their backs. See more hidden Mickeys here that are not on rides.