Dive into a world of crochet magic with this Amigurumi Underwater Kingdom pattern! Inspired by the beauty of the ocean, this enchanting design brings together a variety of sea creatures, coral reefs, and aquatic wonders in every stitch. Whether you’re crafting for marine life lovers, adding a whimsical touch to your decor, or simply enjoy making nature-inspired amigurumi designs, this pattern lets you stitch up a miniature underwater kingdom bursting with charm! Perfect for brightening up any space, this crochet creation brings a touch of handmade ocean magic to your collection. 🌊✨
Designed for customization, this pattern allows you to experiment with different shades of blue, embroidered details, or even tiny accessories like miniature fish, shells, or starfish for extra flair. Craft a classic underwater kingdom with rich ocean tones, create a playful version with pastel hues, or even stitch up a full set of sea-inspired amigurumi for a stunning display! Whether gifted as a thoughtful keepsake, displayed as a cheerful accent, or made simply for the joy of crafting, this Amigurumi Underwater Kingdom is a fun and creative project—perfect for bringing a touch of handmade aquatic magic to every stitch! 🧶💖✨
🧜♀️ Amigurumi Underwater Kingdom Crochet Pattern
Dive into a world of color and imagination with this magical Underwater Kingdom! 🌊✨ Featuring mermaids with flowing hair, a coral castle, and an adorable family of sea creatures, this detailed crochet diorama is the perfect project for advanced crafters who love creating miniature worlds. From the ribbed mermaid tails to the shimmering coral reef base, every stitch brings the ocean to life! 🐚🐠💖
✨ Skill Level
Advanced – Includes 3D shaping, color changes, and multi-part assembly.
📏 Finished Size
Base diameter ~25–30 cm; total height with castle ~20 cm.
🧶 Yarn Amounts (approx.)
- Ocean Blue: 25 g
- Mint Green: 20 g
- Lavender: 15 g
- Pink: 15 g
- Coral: 10 g
- Peach / Skin Tone: 10 g
- Orange: 6 g (Mermaid Hair)
- Purple: 6 g (Mermaid Hair)
- Sea Green: 10 g
- White: 12 g
- Sand / Beige: 10 g
- Red / Yellow / Black (accents): small amounts
🧵 Materials
- Crochet hooks 2.5 mm & 3.0 mm
- Fiberfill stuffing
- 6–8 mm safety eyes
- Stitch markers
- Tapestry needle, scissors
- Pipe cleaners (optional for poseable parts)
- Thin clear nylon thread (for hanging fish/jellyfish)
- Small felt or foam base (optional for reinforcement)
🔤 Abbreviations (US)
MR – Magic Ring
sc – Single Crochet
inc – Increase (2 sc in same st)
dec – Decrease
sl st – Slip Stitch
ch – Chain
hdc – Half Double Crochet
dc – Double Crochet
tr – Treble Crochet
BLO – Back Loop Only
FO – Fasten Off
Work continuously in rounds unless otherwise stated. Stuff lightly as you go.
🧜♀️ MERMAIDS (Make 2 – Orange Hair & Purple Hair)
Head (Peach / Skin Tone)
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4: (2 sc, inc) x6 (24)
R5: (3 sc, inc) x6 (30)
R6–R12: sc around (30)
Place safety eyes between R8–R9.
R13: (3 sc, dec) x6 (24)
R14: (2 sc, dec) x6 (18)
R15: (1 sc, dec) x6 (12)
Stuff firmly.
R16: dec x6 (6) — FO.
Embroider small smile and eyelashes.
Neck & Body (continue or reattach yarn)
R1–R3: sc around (6)
R4: inc around (12)
R5–R10: sc around (12)
Change to tail color.
Tail (Sea Green)
R1: (1 sc, inc) x6 (18)
R2: (2 sc, inc) x6 (24)
R3: (3 sc, inc) x6 (30)
R4–R14: sc in BLO around (30) — creates ribbed texture.
R15: (3 sc, dec) x6 (24)
R16: (2 sc, dec) x6 (18)
R17: (1 sc, dec) x6 (12)
Stuff lightly.
R18: dec x6 (6) — FO.
Tail Fins (Make 2)
Ch 7.
sc in 2nd ch, hdc, dc, tr, dc, hdc, sc.
Repeat for 2nd fin and sew to tail tip.
Arms (Make 2)
MR 6 sc (6)
R2–R8: sc around (6)
FO, leaving tail for sewing. Attach to sides of body.
Hair (Orange or Purple)
Cut 30–35 cm strands. Attach densely around crown.
Leave loose and wavy — do not braid.
Secure with shell button or tiny star appliqué.
Shell Top (White)
Ch 5, sc in 2nd ch, hdc, dc, tr.
FO, make 2. Sew across chest with small overlap.
🏰 CORAL CASTLE
Tower Base (Mint or Lavender)
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4: (2 sc, inc) x6 (24)
R5–R22: sc around (24)
FO. Make 3 tall towers (one central, two smaller sides).
Roof Cone (Pink or Purple)
R1: MR 4 sc (4)
R2: (1 sc, inc) x2 (6)
R3: (2 sc, inc) x2 (8)
R4: (3 sc, inc) x2 (10)
R5–R10: sc around (10)
FO. Stuff lightly, sew atop towers.
Add optional flag (Ch 6, fold felt triangle).
Castle Front
Ch 16, sc in rows to form arch shape.
Add teal border using sl st.
Sew or glue small white crocheted window outlines on towers.
Shell Emblem
Use white yarn: MR 5 sc, (ch 2, sl st) x5 to form scalloped shell.
Attach above arch entrance.
🪸 CORAL REEF BASE
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
Continue increasing evenly to ~90–100 sts.
Work BLO every 2–3 rows to create texture bands.
Work 3–4 cm high.
Make smaller 2nd tier (~60 sts).
Sew upper tier on top for raised castle platform.
Seaweed (Green)
Ch 60–100.
Return with (sc, hdc, dc, hdc, sc) repeating for gentle curl.
Attach along base.
Tube Coral (Coral Pink)
MR 6 sc (6)
R2: inc x6 (12)
R3–R10: sc around (12)
Make several in varying heights and sew upright.
Branch Coral (Lavender or Blue)
Ch 25, return with sc.
Branch mid-way (Ch 10, sc back) for arms.
Sew into base.
Brain Coral (Peach)
Ch 40.
Work 3 sc in each ch to curl.
Coil tightly and sew.
🐠 SEA CREATURES
Fish (Various Colors)
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4–R7: sc around (18)
R8: (1 sc, dec) x6 (12)
R9: dec x6 (6)
Stuff lightly and close.
Tail Fin: Ch 8, sc → tr → sc.
Sew to back.
Add tiny side fins (Ch 5 each) and black bead eyes.
Sea Turtle
Shell (Green):
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4: (2 sc, inc) x6 (24)
R5–R8: sc around (24)
Stuff and FO.
Body (Olive):
MR 6 sc (6), inc to 12, work 5 rows. Attach under shell.
Fins: Ch 6, hdc, dc, sl st. Make 4.
Sew in place.
Crab
Body (Red):
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4: (2 sc, inc) x6 (24)
R5–R8: sc around (24)
Stuff and flatten slightly.
Claws: Ch 6, sc 3, inc, sl st back.
Make 2 and sew to front.
Legs: Ch 4, sc back. Make 6.
Sew along body sides.
Eyes: MR 5 sc (white), add black safety eyes.
Attach on short stalks.
Octopus (White)
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4–R9: sc around (18)
R10: (1 sc, dec) x6 (12)
Stuff lightly.
R11: dec x6 (6) — FO.
Tentacles: Make 8 – Ch 12, 2 sc in each ch to curl.
Sew to base.
Add blush cheeks.
Jellyfish (Lavender)
R1: MR 6 sc (6)
R2: inc x6 (12)
R3: (1 sc, inc) x6 (18)
R4: (2 sc, inc) x6 (24)
R5–R8: sc around (24)
R9 (FLO): (sc, hdc, dc, hdc) repeat for ruffle edge.
FO.
Tentacles: Ch 25–35, 2 sc in each ch for curls.
Make 6 and sew beneath.
Hang with nylon thread.
Starfish
R1: MR 5 sc (5)
R2: (ch 4, sl st in 2nd ch, sc, hdc, sl st in next base st) repeat 5 times to form arms.
Make 2 pieces.
Sew together, stuff lightly.
Embroider face.
🌊 ASSEMBLY & DISPLAY
- Attach castle and coral firmly to the reef base using hot glue or stitching.
- Position mermaids on upper tier near the castle.
- Add sea creatures around the lower reef tier.
- Suspend jellyfish and fish at varied heights (15–25 cm) with nylon thread.
- Add sparkle yarn or sequins for magical shimmer.
- Shape and adjust all corals and seaweed for a natural flow.
✅ FINAL CHECKLIST
- Ribbed mermaid tails and flowing hair ✔️
- Coral castle with 3 tall towers and crocheted windows ✔️
- Tiered reef base with BLO texture ✔️
- Tall curly seaweed ✔️
- Sea creatures accurately shaped ✔️
- Floating fish and jellyfish ✔️
Your breathtaking Underwater Kingdom is complete — a sparkling diorama straight from the depths of imagination! 🧜♀️🐢🐙🌊
