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Under The Sea Party Supplies

Dive into our Under the Sea party supplies, the perfect party theme for kids that love the seaside! Make a splash with colourful under the sea party decorations, balloons, tableware, paper plates, cups, games and more, ideal for an ocean party, mermaid party or something else sea themed! From shimmering fish balloons to treasure hunt escapades, an underwater themed party will have the little ones giggling with glee as they embark on a journey beneath the waves! We’ve got everything you could possibly need for an underwater adventure at your Under The Sea themed party.
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Sky Backdrop Scene Setter Room Roll

Sky Backdrop Scene Setter Room Roll

£18.99
Sale! 26%
Mermaid Mini Pinata Decoration 19cm

Mermaid Mini Pinata Decoration 19cm

£4.99
£6.79
Assorted Mini Sealife Jigsaw Puzzle

Assorted Mini Sealife Jigsaw Puzzle

£0.19
Assorted Sealife Mini Notebook

Assorted Sealife Mini Notebook

£0.19
Sale! 20%
Assorted Sealife Puzzle Maze

Assorted Sealife Puzzle Maze

£0.23
£0.29
Sale! 20%
Assorted Sealife Stationery Favour Set

Assorted Sealife Stationery Favour Set

£0.71
£0.89
Assorted Sealife Pencil with Eraser Top

Assorted Sealife Pencil with Eraser Top

£0.39
Sale! 21%
Mermaid Sticker Sheet

Mermaid Sticker Sheet

£0.15
£0.19
Sealife Sticker Sheet

Sealife Sticker Sheet

£0.19
Sealife Mini Playing Cards

Sealife Mini Playing Cards

£0.49
Assorted Mini Fishing Game

Assorted Mini Fishing Game

£0.39
Mermaid Party Game

Mermaid Party Game

£1.25
Mini Mermaid Puzzle Book 15cm

Mini Mermaid Puzzle Book 15cm

£0.19
Sale! 50%
Elastic Shark Shooter Rocket Toy 23cm

Elastic Shark Shooter Rocket Toy 23cm

£1.49
£2.99
Ocean Themed A4 Colouring sheet

Ocean Themed A4 Colouring sheet

£0.08
Happy Birthday Ocean Pull String Pinata

Happy Birthday Ocean Pull String Pinata

£14.99
Mermaid Shine Pull String Pinata

Mermaid Shine Pull String Pinata

£14.99
Sale! 24%
Blank Drum DIY Pull String Pinata

Blank Drum DIY Pull String Pinata

£13.99
£18.49
Pinata Stick Buster

Pinata Stick Buster

£3.29
Pink Pinata Buster Stick

Pink Pinata Buster Stick

£2.69
Sale! 23%
Number 1 Standard Pinata 50cm

Number 1 Standard Pinata 50cm

£8.99
£11.69
Sale! 27%
Seahorse Paper Cups 230ml - Pack of 8

Seahorse Paper Cups 230ml - Pack of 8

£2.83
£3.89
Metallic Steel Blue Number 0 Birthday Candle 9cm

Metallic Steel Blue Number 0 Birthday Candle 9cm

£1.29
Blue Number 0 Non Hand Held Sparkler 17cm

Blue Number 0 Non Hand Held Sparkler 17cm

£1.19
Silver Number 0 Non Hand Held Sparkler 17cm

Silver Number 0 Non Hand Held Sparkler 17cm

£1.19
Sale! 20%
Under the Sea Party Box

Under the Sea Party Box

£0.39
£0.49
Sealife Pre-Filled Party Favour Bag

Sealife Pre-Filled Party Favour Bag

£1.79
White Paper Party Bag - Pack of 12

White Paper Party Bag - Pack of 12

£1.99
Sale! 20%
Blue Party Box

Blue Party Box

£0.39
£0.49
Baby Blue Tissue Gift Paper Sheets - Pack of 10

Baby Blue Tissue Gift Paper Sheets - Pack of 10

£0.99
Sale! 33%
Blue Shark DIY Premium Balloon Kit

Blue Shark DIY Premium Balloon Kit

£19.99
£29.99
Inflatable Dolphin 53cm

Inflatable Dolphin 53cm

£1.69
Inflatable Whale 85cm

Inflatable Whale 85cm

£2.59
Inflatable Shark - 35 Inches / 89cm

Inflatable Shark – 35 Inches / 89cm

£2.89
Sale! 20%
Inflatable Penguin - 56cm

Inflatable Penguin - 56cm

£2.63
£3.29
Inflatable Splash Water Slide 16ft

Inflatable Splash Water Slide 16ft

£23.79
Mermaid DIY Crown Kit - Pack of 6

Mermaid DIY Crown Kit - Pack of 6

£4.59
Metallic Gold Card Fancy Dress Crown

Metallic Gold Card Fancy Dress Crown

£0.79
Out Of Stock
Snazaroo White Face Paint - 18ml

Snazaroo White Face Paint - 18ml

£4.45
Kingsway Fizzy Cola Bottles Vegan Sweet 4g

Kingsway Fizzy Cola Bottles Vegan Sweet 4g

£0.06
Sale! 50%
Kingsway Beach Mix Gluten Free Sweet 5g

Kingsway Beach Mix Gluten Free Sweet 5g

£0.04
£0.08
Kingsway Baby Dolphin Gluten Free Sweet 3g

Kingsway Baby Dolphin Gluten Free Sweet 3g

£0.05
Sale! 50%
Barnetts Mega Sour Plooms Gluten Free Vegetarian Sweet 8g

Barnetts Mega Sour Plooms Gluten Free Vegetarian Sweet 8g

£0.10
£0.20
Sale! 45%
Kingsway Fizzy Blue Raspberries Vegan Gluten Free Sweet 8.5g

Kingsway Fizzy Blue Raspberries Vegan Gluten Free Sweet 8.5g

£0.06
£0.11
Sale! 50%
Haribo Goldbears Sweet 2.3g

Haribo Goldbears Sweet 2.3g

£0.04
£0.08
Sale! 50%
Haribo Giant Strawb Vegetarian Sweet 11g

Haribo Giant Strawb Vegetarian Sweet 11g

£0.10
£0.20
Haribo Starmix Treat Size Sweets Bag 16g

Haribo Starmix Treat Size Sweets Bag 16g

£0.29
Haribo Supermix Treat Size Sweets Bag 16g

Haribo Supermix Treat Size Sweets Bag 16g

£0.23
Sale! 28%
Sea Friends Food Picks - Pack of 12

Sea Friends Food Picks - Pack of 12

£2.06
£2.89
Sale! 50%
Dots Pink Cupcake Cases - Pack of 72

Dots Pink Cupcake Cases - Pack of 72

£0.74
£1.49
Mermaid Cupcake Cases - Pack of 75

Mermaid Cupcake Cases - Pack of 75

£2.69
Sale! 20%
Single Cupcake Box

Single Cupcake Box

£0.39
£0.49
Sale! 20%
Four Cupcake Box

Four Cupcake Box

£1.35
£1.69
Sale! 43%
Six Cupcake Box

Six Cupcake Box

£0.99
£1.75
Sale! 20%
Turquoise Fish Netting 122 x 240cm

Turquoise Fish Netting 122 x 240cm

£7.99
£9.99
Sale! 20%
Natural Colour Fish Netting 122 x 240cm

Natural Colour Fish Netting 122 x 240cm

£7.99
£9.99
Black Fish Netting 122 x 240cm

Black Fish Netting 122 x 240cm

£9.99
Sale! 50%
Blue Fish Netting 122 x 240cm

Blue Fish Netting 122 x 240cm

£4.99
£9.99
Green Fish Netting 122 x 240cm

Green Fish Netting 122 x 240cm

£9.99
Red Fish Netting 122 x 240cm

Red Fish Netting 122 x 240cm

£9.99
Pink Fish Netting 122 x 240cm

Pink Fish Netting 122 x 240cm

£9.99
Sale! 20%
White Round Paper Plates 17cm - Pack of 20

White Round Paper Plates 17cm - Pack of 20

£1.99
£2.49
Sale! 20%
Powder Blue Square Paper Plates 17cm - Pack of 16

Powder Blue Square Paper Plates 17cm - Pack of 16

£1.75
£2.19
Royal Blue Square Paper Plates 22cm - Pack of 14

Royal Blue Square Paper Plates 22cm - Pack of 14

£2.79
Turquoise Blue Luncheon Napkins 30cm 1Ply - Pack of 100

Turquoise Blue Luncheon Napkins 30cm 1Ply - Pack of 100

£2.39
Powder Blue Round Paper Plates 22cm - Pack of 16

Powder Blue Round Paper Plates 22cm - Pack of 16

£2.79
Royal Blue Paper Cups 270ml - Pack of 14

Royal Blue Paper Cups 270ml - Pack of 14

£2.19
Powder Blue Plastic Reusable Assorted Cutlery Set - Pack of 18

Powder Blue Plastic Reusable Assorted Cutlery Set - Pack of 18

£1.89
Blue Rectangular Reusable Plastic Serving Tray – 9 x 13 Inches / 23 x 33cm – Pack of 3

Blue Rectangular Reusable Plastic Serving Tray – 9 x 13 Inches / 23 x 33cm – Pack of 3

£2.99
Sale! 20%
Royal Blue Oval Paper Plates 30cm - Pack of 8

Royal Blue Oval Paper Plates 30cm - Pack of 8

£2.63
£3.29
Powder Blue Plastic Tablecover 274cm x 137cm

Powder Blue Plastic Tablecover 274cm x 137cm

£1.99
White Round Plastic Tablecover 213cm

White Round Plastic Tablecover 213cm

£1.99
Caribbean Teal Plastic Table Skirt 426cm x 74cm

Caribbean Teal Plastic Table Skirt 426cm x 74cm

£3.69
Silver Damask Paper Banquet Roll - 7m x 1.18m

Silver Damask Paper Banquet Roll - 7m x 1.18m

£5.75
Sale! 20%
Powder Blue Striped Paper Straws - Pack of 10

Powder Blue Striped Paper Straws - Pack of 10

£1.27
£1.59
Iridescent Sequin Table Runner 2.13m

Iridescent Sequin Table Runner 2.13m

£14.89
Powder Blue Honeycomb Ball Garland - 213cm

Powder Blue Honeycomb Ball Garland - 213cm

£3.19
Sale! 20%
Blue Plastic Pennant Bunting 10m

Blue Plastic Pennant Bunting 10m

£2.07
£2.59
White Honeycomb Hanging Decoration Puff Ball 40cm

White Honeycomb Hanging Decoration Puff Ball 40cm

£2.19
Powder Blue Honeycomb Hanging Decoration Ball 20cm

Powder Blue Honeycomb Hanging Decoration Ball 20cm

£1.99
Blue Hanging Decorative Honeycomb Fan 40cm

Blue Hanging Decorative Honeycomb Fan 40cm

£1.99
Baby Blue Foil Door Curtain Backdrop 92cm x 244cm

Baby Blue Foil Door Curtain Backdrop 92cm x 244cm

£2.29
Sale! 20%
White Crepe Paper Streamer - 24.6m / 81 ft

White Crepe Paper Streamer - 24.6m / 81 ft

£1.19
£1.49
Sale! 50%
Pearl Baby Blue 10mm Round Foil Table Confetti 50g

Pearl Baby Blue 10mm Round Foil Table Confetti 50g

£1.89
£3.79
Silver 25mm Giant Round Foil Table Confetti 50g

Silver 25mm Giant Round Foil Table Confetti 50g

£3.79
Silver 12mm Heart Diamonds Premium Table Gems 28g

Silver 12mm Heart Diamonds Premium Table Gems 28g

£1.59
Baby Blue Round Foil Helium Balloon 46cm / 18 in
Requires Inflation

Baby Blue Round Foil Helium Balloon 46cm / 18 in

£1.49
Out Of Stock
White Heart Shape Foil Helium Balloon 46cm / 18 in
Requires Inflation

White Heart Shape Foil Helium Balloon 46cm / 18 in

£1.49
Blue Star Foil Helium Balloon 51cm / 20 in
Requires Inflation

Blue Star Foil Helium Balloon 51cm / 20 in

£1.49
Platinum Silver Satin Luxe Round Foil Helium Balloon 43cm / 17 in
Requires Inflation

Platinum Silver Satin Luxe Round Foil Helium Balloon 43cm / 17 in

£1.89
Satin Luxe Pastel Blue Heart Shape Foil Helium Balloon 43cm / 17 in
Requires Inflation

Satin Luxe Pastel Blue Heart Shape Foil Helium Balloon 43cm / 17 in

£1.89
Blue Orbz Foil Helium Balloon 38cm / 15 in
Requires Inflation

Blue Orbz Foil Helium Balloon 38cm / 15 in

£4.99
Pastel Blue 4D Globe Foil Helium Balloon 29cm / 11 in
Requires Inflation

Pastel Blue 4D Globe Foil Helium Balloon 29cm / 11 in

£3.49
Sale! 20%
Fashion Solid White Sand Jumbo Biodegradable Latex Balloons 61cm / 24 in - Pack of 3

Fashion Solid White Sand Jumbo Biodegradable Latex Balloons 61cm / 24 in - Pack of 3

£6.79
£8.49
Out Of Stock
Evening Blue Jumbo Biodegradable Latex Balloon 91cm / 36 in

Evening Blue Jumbo Biodegradable Latex Balloon 91cm / 36 in

£2.29
Turquoise Blue Heart Shape Foil Helium Giant Balloon 91cm / 36 in
Requires Inflation

Turquoise Blue Heart Shape Foil Helium Giant Balloon 91cm / 36 in

£4.49
Sale! 50%
Pastel Blue 4D Square Shape Foil Helium Balloon 38cm / 15 in
Requires Inflation

Pastel Blue 4D Square Shape Foil Helium Balloon 38cm / 15 in

£2.24
£4.49
Sale! 50%
Sky Blue Metallic Latex Linking Balloons 30cm / 12 in - Pack of 15

Sky Blue Metallic Latex Linking Balloons 30cm / 12 in - Pack of 15

£1.49
£2.99
Sky Blue Biodegradable Latex Balloons 30cm / 12 in - Pack of 8

Sky Blue Biodegradable Latex Balloons 30cm / 12 in - Pack of 8

£1.59
Sale! 20%
Cosmic Blue Biodegradable Latex Balloons 30cm / 12 in - Pack of 50

Cosmic Blue Biodegradable Latex Balloons 30cm / 12 in - Pack of 50

£7.99
£9.99
Out Of Stock
Sale! 25%
Pearl White Round Latex Qualatex Balloons 28cm / 11 in – Pack of 100

Pearl White Round Latex Qualatex Balloons 28cm / 11 in – Pack of 100

£21.74
£28.99
Sale! 50%
Snow White Biodegradable Latex Balloons 23cm / 9 in - Pack of 30

Snow White Biodegradable Latex Balloons 23cm / 9 in - Pack of 30

£0.99
£1.99
Sale! 20%
Baby Blue Biodegradable Latex Balloons 23cm / 9 in - Pack of 50

Baby Blue Biodegradable Latex Balloons 23cm / 9 in - Pack of 50

£2.39
£2.99
Blue Star Balloon Weight 140g

Blue Star Balloon Weight 140g

£1.49
Iridescent Foil Balloon Weight 175g

Iridescent Foil Balloon Weight 175g

£0.69
Blue Bubble Balloon Weight 35g

Blue Bubble Balloon Weight 35g

£0.65
Royal Blue Curling Ribbon - 100 yd / 91.4m

Royal Blue Curling Ribbon - 100 yd / 91.4m

£1.59
White Curling Ribbon - 500 yd / 457m

White Curling Ribbon - 500 yd / 457m

£2.99
Out Of Stock
Sale! 29%
Disposable Helium Gas Canister with 30 Metallic Silver Balloons and Curling Ribbon

Disposable Helium Gas Canister with 30 Metallic Silver Balloons and Curling Ribbon

£22.59
£31.89
Sale! 18%
Disposable Helium Gas Canister with 50 Baby Blue Balloons and Curling Ribbon

Disposable Helium Gas Canister with 50 Baby Blue Balloons and Curling Ribbon

£34.89
£42.83
Out Of Stock
Silver Number 1 Air Fill Foil Balloon 40cm / 16 in
Air Fill

Silver Number 1 Air Fill Foil Balloon 40cm / 16 in

£1.95
Sale! 50%
Number 0 Pastel Blue Air Fill Foil Balloon 35cm / 14 in
Air Fill

Number 0 Pastel Blue Air Fill Foil Balloon 35cm / 14 in

£0.74
£1.49
Blue Number 0 Helium Foil Giant Balloon 86cm / 34 in
Requires Inflation

Blue Number 0 Helium Foil Giant Balloon 86cm / 34 in

£3.75
Silver Number 0 Helium Foil Giant Balloon 86cm / 34 in
Requires Inflation

Silver Number 0 Helium Foil Giant Balloon 86cm / 34 in

£3.75
Sale! 49%
Pastel Blue Number 2 Shaped Air Fill Standing Foil Balloon 64cm / 25 in
Air Fill

Pastel Blue Number 2 Shaped Air Fill Standing Foil Balloon 64cm / 25 in

£2.49
£4.89
Sale! 50%
Pastel Blue Number 0 Helium Foil Giant Balloon 66cm / 26 in
Requires Inflation

Pastel Blue Number 0 Helium Foil Giant Balloon 66cm / 26 in

£1.99
£3.99
Sale! 89%
Silver Letter B Air Fill Foil Balloon 40cm / 16 in
Air Fill

Silver Letter B Air Fill Foil Balloon 40cm / 16 in

£0.20
£1.95
Sale! 88%
Blue Letter B Air Fill Foil Balloon 40cm / 16 in
Air Fill

Blue Letter B Air Fill Foil Balloon 40cm / 16 in

£0.20
£1.79
Silver Letter B Helium Foil Giant Balloon 86cm / 34 in
Requires Inflation

Silver Letter B Helium Foil Giant Balloon 86cm / 34 in

£5.95
Sale! 50%
White Number 2 Helium Foil Giant Balloon 102cm / 40 in
Requires Inflation

White Number 2 Helium Foil Giant Balloon 102cm / 40 in

£2.49
£4.99
Sale! 50%
Silver Number 7 Shaped Air Fill Standing Foil Balloon 76cm / 30 in
Air Fill

Silver Number 7 Shaped Air Fill Standing Foil Balloon 76cm / 30 in

£1.99
£3.99
Sticky Reusable Power Blue Tack 150g

Sticky Reusable Power Blue Tack 150g

£1.99
Blue Reusable Sticky Power Tack 150g

Blue Reusable Sticky Power Tack 150g

£1.49
Double Sided Tape - Pack of 3

Double Sided Tape - Pack of 3

£1.79
Clear Packing Tape 50m

Clear Packing Tape 50m

£1.99
Comfort Grip Scissors - Pack of 2

Comfort Grip Scissors - Pack of 2

£1.69
Stainless Steel Scissors - Pack of 2

Stainless Steel Scissors - Pack of 2

£2.09
Biodegradable Caddy Sacks - Roll of 25

Biodegradable Caddy Sacks - Roll of 25

£5.49
Reusable Clear Cable Ties - Pack of 10

Reusable Clear Cable Ties - Pack of 10

£1.99
Sale! 56%
Electric Air Balloon Pump UK

Electric Air Balloon Pump UK

£12.99
£29.99
Hishine Bottle with Sprayer 240ml

Hishine Bottle with Sprayer 240ml

£23.99
Comfort Grip Scissors - Pack of 2

Comfort Grip Scissors - Pack of 2

£1.69
Sale! 33%
Balloon Garland Tape 5 m

Balloon Garland Tape 5 m

£1.99
£2.99
White Curling Ribbon - 100 yd / 91.4m

White Curling Ribbon - 100 yd / 91.4m

£1.59
Sale! 25%
Time To Shine Latex Balloon Spray 700ml

Time To Shine Latex Balloon Spray 700ml

£14.99
£19.99
Biodegradable Caddy Sacks - Roll of 25

Biodegradable Caddy Sacks - Roll of 25

£5.49
Out Of Stock
Tablecover Clips - Pack of 4

Tablecover Clips - Pack of 4

£1.19
Sale! 20%
Glitter Hot Pink Candles With Holders - Pack of 12

Glitter Hot Pink Candles With Holders - Pack of 12

£1.43
£1.79
Sale! 20%
Ruby Red Striped Paper Straws - Pack of 10

Ruby Red Striped Paper Straws - Pack of 10

£1.27
£1.59
Out Of Stock
Sale! 27%
Number 3 Standard 3D Pinata 54cm

Number 3 Standard 3D Pinata 54cm

£11.99
£16.50
Out Of Stock
Sale! 50%
Baby Blue Paper Bag With Handles 21cm

Baby Blue Paper Bag With Handles 21cm

£0.21
£0.42
Out Of Stock
Kingsway Blue & White Penguins Gluten Free Sweet 4g

Kingsway Blue & White Penguins Gluten Free Sweet 4g

£0.06
Out Of Stock
Haribo Freaky Fish Vegetarian Sweet 10g

Haribo Freaky Fish Vegetarian Sweet 10g

£0.16
Out Of Stock
Sale! 50%
Barnetts Mega Sour Rhubarb & Custard Gluten Free Vegetarian Sweet 8g

Barnetts Mega Sour Rhubarb & Custard Gluten Free Vegetarian Sweet 8g

£0.10
£0.20
Out Of Stock
Frisia Rainbow Twister Vanilla Mallow 8.5g

Frisia Rainbow Twister Vanilla Mallow 8.5g

£0.24
Out Of Stock
Shimmering White Satin Luxe Star Shape Foil Helium Balloon 48cm / 19 in
Requires Inflation

Shimmering White Satin Luxe Star Shape Foil Helium Balloon 48cm / 19 in

£1.89
Out Of Stock
Pastel Matte Baby Blue Biodegradable Mini Latex Balloons 13cm / 5 in – Pack of 100

Pastel Matte Baby Blue Biodegradable Mini Latex Balloons 13cm / 5 in – Pack of 100

£7.99