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Under the Sea Party

With our Under the Sea party decorations, you can take a trip beneath the waves! Bring the sea to life with iridescent colours, sea creatures, and other dazzling mermaid party materials during your mermaid birthday celebration. The nice thing about under the sea themed parties is that they can be enjoyed by children of almost any age group, which is ideal. You might use mermaids, sharks,fish, sea creatures and narwhal to create your own unique look. We wanted to offer our ideas and inspiration for a fun-filled under the sea themed party since the colours and décor can all be brought together in such innovative ways. So put on your fins and get ready to dive in!

With this customizable age mermaid bunting, you can give your child the experience of living in a magical underwater kingdom.Simply mix and match with other party decorations from our "Mermaid " line to create the right atmosphere for your child's birthday celebration with this lovely bunting.Each p..
£7.99
Make the birthday boy feel extra special with this metallic blue 'birthday boy' banner1 Banner with string2 Metres..
£4.99
Make the birthday girl feel extra special with this gorgeous iridescent birthday girl banner1 Banner with string2 Metres..
£4.99
INFLATED - COLLECTION ONLYThe stunning combination of purple and blue colours of the Mermaid balloon set exquisitely highlights any children's birthday party or mermaid-themed party.Effortlessly bring the magic of mermaids to life with this balloon's user-friendly design.Set contains:1 X Giant Merma..
£28.99
Comes inflated - COLLECTION ONLY.1 Foil Mermaid Birthday BalloonFoil balloon measures 18" (45cm) when fully inflatedIdeal for decorating a girls birthday party or mermaid theme partyGreat for adding to a balloon bouquet or tying to a gift..
£4.99
INFLATED - COLLECTION ONLY39" Have a "Fin"tastic Birthday Shark foil balloon.Smiling, super-cute shark foil balloon that is perfect for your loved one's birthday! ..
£14.99
INFLATED - COLLECTION ONLYIt will be a spectacular complement to an under the sea themed birthday party if you use this bright and colourful 18 inch foil. Create an eye-catching pattern by combining it with blues, purples, and greens to make a wonderful party set-up...
£4.99
With this blue streamer backdrop, you can add a splash of colour to your party. With these beautiful streamers, you can quickly construct a simple party background that can be hung from walls or furniture to create the right appearance for your celebration! You can have a fabulous photo booth, navy-..
£8.99
INFLATED - COLLECTION ONLYThe stunning combination of purple and blue colours of the Narwahl balloon set exquisitely highlights any children's birthday party or under the sea-themed party.Effortlessly bring the magic of narwahls to life with this balloon's user-friendly design.Set contains:1 X Giant..
£28.99
A gorgeous backdrop for a fabulous party our 'Matte Blue Fringe Curtain' will have everyone in the party spirit. Guests will love using this as a backdrop to their photos - memory's to treasure forever.Hang this curtain on walls and doorways for a fabulous decoration. Mix with the rest of our Baby G..
£4.99
INFLATED - COLLECTION ONLYShake things up with our brand new assortment of blue party balloons! Ideal for use in decorating your next event or birthday celebration.These chic balloons in shades of blue, navy, and confetti will add an extra layer of memorability to your event. For a more understated ..
£33.99
With this beautiful Floral Garland, you can bring some flower power to your party. 2 M long...
£3.99
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