Kids · under the sea
Mermaid, Shark & Pirate Birthday Invitations
Mermaid Waves (shells and a tail), Shark Splash (a fin and a bite) and Pirate Cove (a treasure map with an X). Three ocean parties — a pool, an aquarium or a backyard with a kiddie pool.
3 designs
Pick one and customize it
Mermaid Waves
Photo window · 3 palettes · Fredoka
Customize
Shark Splash
Photo window · 3 palettes · Bungee
Customize
Pirate Cove
No photo needed · 3 palettes · Alfa Slab One
Customize
Worth knowing
Shark Splash and Mermaid Waves both have a square photo window; a swimsuit photo from last summer is the obvious pick.
How it works
Photo, details, colors, download
Open any design above in the maker. Drop a photo into the window and drag it until the face sits where you want it. Type the name, the age line, the date, time and place, and the RSVP; the back of the card updates with them. Pick one of the three palettes drawn for the design, then download a 5 x 7 PDF (front and back), a two-per-sheet letter PDF for home printing, print-shop PNGs with bleed, 4 x 6 PNGs for a photo counter, a phone-sized PNG, or a Word file.
Nothing is uploaded — the card is built in your browser.
More kids themes
Other kids invitation themes
Dinosaurs
3 designs · Dino Roar, Fossil Dig, Jungle Hatch
Unicorns
3 designs · Unicorn Rainbow, Moonlit Unicorn, Unicorn Meadow
Outer Space
3 designs · Blast Off, Moon Walk, Planet Party
Superheroes
3 designs · Hero Squad, Comic Strip, Hero Shield
Party Pop
3 designs · Confetti Pop, Balloon Bash, Sprinkle Donut
First Birthday
3 designs · Wildflower First, Daisy Chain, Pressed Botanicals
Frequently asked questions
Do any of these say "pool party"?
Not by default, but the headline is yours. For an explicit pool party see the Splash & Sun family.
Is Pirate Cove scary?
No — a map, a compass and a palm, no skulls. The sample note says "Eye patches & hats provided".
Updated through May 2026