A sure sign that it's Summer? Celebrity kids are off and running around the world as they take advantage of the warmer weather! Over the past week we saw Penelope Disick soaking up the sun in the Hamptons with her mom, Kourtney Kardashian, Harper Smith scooting around NYC with her mom, Tiffani Thiessen, and Kaius Berman celebrating the Fourth of July on the beach with his mom, Rachel Zoe, just to name a few.
Click through to see this week's cutest celeb-tot candids — all shot by Mom or Dad — and don't forget to follow POPSUGAR Moms on Instagram [1], Facebook [2], Pinterest [3], and Twitter [4]!
Tori Spelling [5] had a festive Fourth of July with her girls, Stella and Hattie McDermott.
Source: Instagram user torispelling [6]
Kim Kardashian [7] wished her niece, Penelope Disick, a happy birthday.
Source: Instagram user kimkardashian [8]
Arabella Rose Kushner didn't win her raft race, but she had fun trying according to her mom, Ivanka Trump.
Source: Instagram user ivankatrump [9]
Selma Blair [10] caved and bought Arthur Bleick his first pair of flip flops.
Source: Instagram user therealselmablair [11]
Mariah Carey [12] calmed her kids, Monroe and Moroccan, during an NYC thunderstorm.
Source: Instagram user mariahcarey [13]
Harper Smith visited the American Museum of Natural History in NYC.
Source: Instagram user tathiessen [14]
Arabella Rose Kushner enjoyed a Summer ice cream cone with her mom, Ivanka Trump.
Source: Instagram user ivankatrump [15]
Madonna [16]'s son, Rocco Ritchie, took to the waves with a pal.
Source: Instagram user madonna [17]
Molly Sims's son, Brooks, wore his thoughts on his chest, saying he only dates models — like his mom.
Source: Instagram user mollybsims [18]
Soleil Moon Frye took her daughter, Poet Sienna, to her namesake, the town of Sienna, Italy.
Source: Instagram user moonfrye [19]
Noah Bublé's night was through after his dad's concert in NYC.
Source: Instagram user michaelbuble [20]
Sunnery and Phyllon James wore their Dutch pride in advance of the Netherlands' loss to Argentina at the World Cup.
Source: Instagram user doutzen [21]
Brooks Stuber looked a little intimidated by the lobster Molly Sims found in New England.
Source: Instagram user mollybsims [22]
Hilary Duff [23] went on a hike with her son, Luca Comrie.
Source: Instagram user hilaryduff [24]
Harper Smith dressed up for a day of scootering around NYC.
Source: Instagram user tathiessen [25]
Kourtney Kardashian sunned herself in the Hamptons as her daughter Penelope climbed on her pregnant belly.
Source: Instagram user kourtneykardash [26]
Rocco Faison was all smiles for his mom, Cacee Cobb.
Source: Instagram user caceecobb [27]
Rachel Zoe spent the Fourth of July on the beach with her baby, Kaius.
Source: Instagram user rachelzoe [28]
Willow Hart joined her dad, Carey, on his tour over the holiday.
Source: Instagram user hartluck [29]
Former president George W. Bush fed his granddaughter, Mila.
Source: Instagram user jennabhager [30]
Skyler and Kaius Berman were decked out in red, white, and blue for the Fourth of July.
Source: Instagram user rachelzoe [31]