"Thank You @SanDiegoZoo for the most amazing day!!!! #memories #churros," the 58-year-old captioned a sweet picture via Instagram. #myoneyearoldbirthdaywashere! #cantwaittocomeback! #family."
Jenner wore all white for the afternoon outing and accessorized with a cream-colored hat. She held onto little Nori as they both petted a giraffe. Kanye West's 13-month-old little girl wore a grey outfit with matching moccasins.
The Kardashian matriarch — who is sweetly called "Lovey" by her grandkids — was also joined by Kim, Kourtney Kardashian, and Kourtney's son Mason, 4, and 2-year-old daughter Penelope.
"Love this!!" Jenner added via Instagram, along with a snapshot of pink flamingos. "Thanks for the memories @SanDiegoZoo!!! #birdsofafeather."