Olivia Wilde [1] had some fun in the sun with her little one this week, splashing around in a water play area in NYC with baby Otis. On Wednesday, she posted an adorable picture of their park day [2] on Instagram, writing, "#BrooklynBridgePark #PleaseTouchTheArt #TheStrokes." Olivia and Jason Sudeikis welcomed Otis in April 2014 [3], and although Olivia rarely shares pictures of their first child, she has posted a few gems on social media over the past year. Three months after he was born, she posted a picture of Otis peeking over her shoulder [4], and her little one also made a cameo in her September 2014 Glamour spread, which featured a picture of Otis breastfeeding [5].