Looking for a fresh idea for your child's birthday? A pool party is a fantastic way to cool down and have a blast in the summer heat. There is a lot to organise, though, so here is where to begin. This guide first appeared on this site in 2019; we have updated it with an extra emphasis on supervision.
1. Start with the safety plan
Before themes and cake, decide who is watching the water. Drowning is quick and often silent, and parties are exactly when adults assume someone else is looking. Appoint a designated water watcher for every stretch of the party, an adult who is not drinking, not on the phone and not running the barbecue, and swap every 15 to 30 minutes. Keep young or weak swimmers within arm's reach, and ask parents in advance about each child's swimming ability. Our pool and water safety basics has a full checklist.
2. Pick an exciting theme
A theme sets the tone and makes planning easier. Sit down with your child and ask about their favourite films, books or games: pirates, mermaids, sea creatures, tropical islands. You could even mix two favourite worlds into something unique. Once the theme is settled, choose a colour scheme and a motif for the invitations and decorations, and keep it consistent.
3. Make your own decorations
You do not need to turn the garden into a tropical resort. Craft sites and video tutorials are full of ideas, and plenty of materials such as tissue paper and cardboard are already at home. Be strategic about placement:
- Keep paper streamers away from the pool; they get wet and fall apart.
- Never hang banners or strings over the pool, where jumping children can get caught.
- Save the prettiest paper décor for the food table, where it will stay dry.
- Coloured cups, plates and little paper umbrellas give an easy tropical feel.
4. Invite some special characters
Clowns and balloon artists are the usual party entertainers, but a pool party suits something more aquatic. A mermaid or pirate performer fits an underwater theme, or willing friends and relatives can dress up for a budget-friendly version. Characters also make great props for a photo corner.
5. Choose floats with care
Is it even a pool party without colourful floats? Unicorns, dolphins, swans and pizza slices add life to the pool and children love them. Two rules keep them fun:
- Floats are toys, not safety devices. They can tip, slip or drift out of reach. Children who cannot swim well should wear a properly fitted life jacket approved for their size, and still have an adult within arm's reach.
- Fewer is better in a busy pool. A few floats and plenty of clear water make it easier to see every child.
6. Line up some fun games
Children will not swim the whole time, so plan a mix of wet and dry games:
- In the water: ball games, diving for "treasure" in the shallow end, or classic tag games like Sharks and Minnows, all with the water watcher in place and rough play kept out.
- On land: a piñata set well away from the pool, a shaved-ice station with fruit toppings, and a photo booth with sunglasses, hats and theme props.
- Mementos: an instant camera lets guests take home a photo of the day.
7. Food, shade and sunscreen
Serve food away from the pool edge, offer plenty of water, and set out a sunscreen station with a reminder to reapply after swimming. Put up shade where parents can sit and watch. Plan a no-swimming break during food so everyone gets out of the water for a while.
So there you have it: a guide to an unforgettable birthday pool party. Remind the children about pool rules, keep the water watched, and have a ball. For a smaller, toddler-friendly set-up, see our guide to the best kids' pools for your backyard.
