Most people take a summer dress to the beach with them to cover up when they've had enough sun for the day.
So either Suri Cruise is a very shy little girl or her mother Katie Holmes forgot to pack her swimsuit.
The little girl was snapped frolicking in the sea at Miami Beach with her mum fully-clothed in a multi-coloured dress.
Did mum forget to pack your cossie? Suri Cruise is snapped in the ocean at Miami Beach fully-clothed in a multi-coloured sundress
Not that the five-year-old seemed to care that she was soaked to the skin and her dress was clinging to her as she splashed about with her mother.
Katie, on the other hand, was clad in more suitable beach wear in a burgundy bikini and pink short.
The pair looked like they were having a great time together as they played together in the surf.
Here it comes, mummy! Katie and Suri get ready to brace themselves against an approaching wave
Crash! Suri closes her eyes and squeals in delight as the wave hits her and mother Katie
Can we do that again? Suri laughs out loud as Katie is knocked off her feet
And Suri was seen squealing in delight as the waves crashed up against them, at one point knocking Katie off her feet.
The pair were enjoying some quality time together in the Florida city where Daddy Tom Cruise, 48 , is filming his new movie, Rock of Ages.
Cruise is undergoing an amazing transformation to play long-haired, tattooed rocker Stacee Jaxx in the film, which is due for release next year.
The tide is high: The look of glee on Suri's face was there for all to see as another wave approached
That was fun! Katie scoops Suri up out of the water as they play around
It tells the story of a girl who arrives in Hollywood at the height of the 1980s rock scene and also stars Russell Brand.
It's a very different role for Tom, and Katie has given her backing to the career departure for her husband by revealing that he likes to perform at their home.
'Tom is such an amazing performer. Yes, we have music in our house and it’s amazing,' she told Access Hollywood.
Time to go and dry off: Katie and Suri head back to their towels
Time to dry off: Suri clutches her towel as she rubs herself down before wrapping it round her
And she must be delighted that the choice of film locale is so appealing, engendering as it did, her lovely day with Suri.
The little girl had to leave her designer shoes behind and settle for a pair of more practical flip flops for the day on the beach.
Her mother is reported to encourage Suri's love of shoes, urging her favourite designers to make custom-heels for the gorgeous child.
A source told Star magazine: 'Suri has so many designer shoes.
Snuggling up: Katie and Suri curl up on their towels
'She’s a massive fan of Marc Jacobs and she’s had several shoes custom-made, so if they didn’t come with a heel, Katie had them redesigned for Suri. She commissioned a pair of Louboutins for her a while back!'
'The older she gets, the less she wants to wear anything but little heels,' she source continued.
'Even when she’s going to play dates or walking on the beach, she cries if Katie reaches for anything but a little pair of sandals with some sort of heel.'
'If they don't come with a heel, Katie has them redesigned for Suri. She commissioned a pair of Louboutins for her a while back!'
Sandy girl: Wearing some brightly coloured sunglasses, Suri plays with a bucket and spade
But the pre-kindergarten cutie's parents believe that her precocious fashion sense is something to be nurtured, and even let her choose their own clothes.
The insider added: 'Suri sometimes picks out the shoes her mum should wear, and then picks out shoes for her dad! They genuinely seem to value her opinion and want her to make her own decisions.'
It looks as if this time, little Suri has decided to jump in both feet first, to the delight of her proud mother.