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Chapter 3: Seaside in Yoshi and the Mysterious Book has 25 Smiley Flowers, spread over six creature levels: Weewoo (4), Ouchin (3), Casterway (4), Bafloonder (6), Snurfboard (4) and Nep-Enut (4). This guide covers all 25 with a screenshot and short route steps for each one.
Chapter 3: Seaside is split into six creature levels. Jump straight to the level you are cleaning up. Each link shows the Flower count and the main thing to check in that route.
Weewoo Smiley Flower Locations
Weewoo is a music-based Seaside route. Carry the Weewoo to the right landmarks and use its music to wake up hidden Flower triggers.

Smiley Flower #1 – Weewoo
- Return the conch shell to the Weewoo so it can be used for music interactions.
- Carry the Weewoo to the butterfly-filled grassy area.
- Follow the butterflies until a Winged Cloud appears, then hit the cloud with an egg to reveal the Flower.

Smiley Flower #2 – Weewoo
- Carry the Weewoo to the sleeping bud beside the hidden concert hall.
- Use the Weewoo music to grow the bud and climb upward.
- Play music for the tiny bird perched above to reveal the Flower.

Smiley Flower #3 – Weewoo
- Bring the Weewoo to the bud above the concert hall.
- Grow the bud and climb to the pedestal on its left.
- Use the music interaction there to revive and collect the Flower.

Smiley Flower #4 – Weewoo
- Carry the Weewoo to the bud near the shore.
- Grow the bud and climb onto its leaves.
- Use the new height to enter the tiny cave in the platform above and collect the Flower.
Ouchin Smiley Flower Locations
Ouchin mixes ship-deck checks with a hidden underwater platform. Bring eggs and watch for high clouds above the mast.

Smiley Flower #1 – Ouchin
- Go to the upper-left side of the ship deck.
- Look above the chest for the sleeping Ouchin.
- Hit the Ouchin with an egg to trigger the Flower.

Smiley Flower #2 – Ouchin
- Eat a watermelon before the front section of the ship.
- Ground Pound the water to reveal the submerged platform.
- Spit a watermelon seed at the Flower to collect it.

Smiley Flower #3 – Ouchin
- Climb to the uppermost platform of the main mast.
- Look above Yoshi for the flying cloud.
- Hit the cloud with an egg to release the Flower.
Casterway Smiley Flower Locations
Casterway asks you to fish in specific water and mud spots. If a Flower is not visible, use the Casterway from a better angle.

Smiley Flower #1 – Casterway
- Climb to the platform above the cove.
- Use the Casterway in the mud puddle.
- Pull the Flower out from the mud.

Smiley Flower #2 – Casterway
- Return to the water near the giant fish area.
- Fish beside the spot where the giant fish was.
- Pull the Flower up from the sea bottom.

Smiley Flower #3 – Casterway
- Stand on the cove platform with the second Casterway.
- Aim into the open clamshell underwater.
- Fish out the Flower from inside the clamshell.

Smiley Flower #4 – Casterway
- Go left of the lily pad hut.
- Watch for the Winged Cloud moving nearby.
- Hit the cloud with an egg to spawn the Flower.
Bafloonder Smiley Flower Locations
Bafloonder is an underwater movement route. Inflated dashes break crates, reach waterfalls and open hidden seabed paths.

Smiley Flower #1 – Bafloonder
- Carry an inflated Bafloonder and dive into the ocean.
- Dash through the crate underneath the starting platform.
- Jump on the shell inside to open it and collect the Flower.

Smiley Flower #2 – Bafloonder
- Dive to the seabed below the starting platform.
- Use the inflated Bafloonder dash on the sunken ship crates.
- Collect the Flower hidden behind the crates.

Smiley Flower #3 – Bafloonder
- Swim to the leftmost sea area.
- Use the inflated Bafloonder to dash through the closing tunnel.
- Reach the Flower before the route closes.

Smiley Flower #4 – Bafloonder
- Dash up the westernmost waterfall.
- Jump at the top of the launch.
- Grab the Flower above the waterfall route.

Smiley Flower #5 – Bafloonder
- Go to the leftmost sea area with Ouchins circling a platform.
- Dash around the platform through the Ouchin route.
- Collect the Flower that appears after completing the dash path.

Smiley Flower #6 – Bafloonder
- Feed the Bafloonder a chili pepper so it grows spikes.
- Dash into the single coral right of the shipwreck to open a seabed hole.
- Enter the hole and collect the Flower from the fish inside.
Snurfboard Smiley Flower Locations
Snurfboard hides Flowers behind wave jumps and underwater checks. Stay on the board long enough to inspect both the shipwreck and the far-right route.

Smiley Flower #1 – Snurfboard
- Ride the Snurfboard through the waves.
- Jump up the shipwreck debris with the mast.
- Collect the Flower on the elevated wreck route.

Smiley Flower #2 – Snurfboard
- Move to the far-right side of the map.
- Spin dive down to the submerged treasure chest.
- Open the chest to collect the Flower.

Smiley Flower #3 – Snurfboard
- Return to the mast debris.
- Use the wave timing to launch into the air on the right side.
- Grab the Flower during the launch.

Smiley Flower #4 – Snurfboard
- Climb the palm tree platforms.
- Keep jumping upward instead of exiting the route.
- Collect the Flower in the area above.
Nep-Enut Smiley Flower Locations
Nep-Enut revolves around throwing droplets and combining Nep-Enuts. The cave behind the waterfall is especially easy to miss.

Smiley Flower #1 – Nep-Enut
- Stand on the starting platform.
- Aim an egg at the hole above the tiny pond.
- Hit the hole to reveal the Flower.

Smiley Flower #2 – Nep-Enut
- Throw Nep-Enut droplets at the big Nep-Enut until it grows.
- Climb onto its head.
- Jump over the shipwreck crates and grab the Flower.

Smiley Flower #3 – Nep-Enut
- Enter the cave behind the waterfall.
- Disassemble two Nep-Enuts and throw them into the left mud puddle.
- Combine them into a large muddy Nep-Enut to receive the Flower.

Smiley Flower #4 – Nep-Enut
- Bring the large Nep-Enut to the rocks on the far-right side.
- Use it to hydrate the wilted Flower.
- Collect the Flower after it blooms.
Video Sources and Credits
Gameplay screenshots on this Seaside Smiley Flower guide are sourced from AdamzoneTopMarks on YouTube, using the video All Seaside Smiley Flower Locations (Chapter 3) – Yoshi and the Mysterious Book (Switch 2). Yoshi and the Mysterious Book visuals and related game content are property of Nintendo. Written route notes are original Gaming Guide Archives guide text.
FAQ
How many Smiley Flowers are in Chapter 3: Seaside of Yoshi and the Mysterious Book?
Chapter 3: Seaside has 25 Smiley Flowers in total, spread over six creature levels: 4 in Weewoo, 3 in Ouchin, 4 in Casterway, 6 in Bafloonder, 4 in Snurfboard and 4 in Nep-Enut. Every one of them is covered on this page with a screenshot and route steps.
Which Seaside level has the most Smiley Flowers?
Bafloonder is the biggest route with 6 Smiley Flowers. All six rely on the inflated Bafloonder dash, so keep the creature with you for the whole underwater route.
What is the easiest Smiley Flower to miss in Seaside?
The third Nep-Enut Flower, hidden in the cave behind the waterfall. Enter the cave, disassemble two Nep-Enuts and throw them into the left mud puddle: combining them into a large muddy Nep-Enut rewards the Flower.
Where do the Seaside screenshots come from?
All screenshots come from the credited AdamzoneTopMarks Seaside walkthrough on YouTube, and the game visuals belong to Nintendo. The written route notes are original Gaming Guide Archives guide text.
Should I clear Seaside in this order?
Yes. Work through the six level blocks from top to bottom, then revisit any Flower card that depends on a creature interaction or hidden underwater route.
