Hilary Duff's daughter met a major milestone while on vacation in paradise. The Lizzie McGuire alum, 37, shared a Reel on her Instagram on Monday, June 30, as she rounded up her family's vacation to Hawaii. In one clip, Duff's 13-month-old daughter, Townes Meadow, could be seen taking a few steps on an outdoor patio. The scene shifts to show Townes inside, hoisting herself up to see her mom. As she recounted her time on the tropical island, Duff shared that those few steps were actually Townes' first. "Absolutely the perfect setting for Townsie’s first steps and our family and friends to enjoy swimming until our eyes gave out, riding bikes, fishing, making wood fired pizzas like pros, snorkeling with turtles, feeding ducks, and daily visits to Kilo Kai," she wrote in her caption. "Our souls leveled up and we will be replaying this one for a long long time. 10 out of 10 would recommend losing track of time with your favorite people here. We ❤️ you Kona 🌺 ." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories. Duff shares daughters Townes, Mae James, 4, and Banks Violet, 6, with husband Matthew Koma. She is also mom to son Luca Cruz, 13, with her ex-husband Mike Comrie. Earlier this month, the How I Met Your Father star shared a sweet Father's Day tribute in honor of Koma. Duff posted an Instagram video on June 15, which featured some sweet family moments with their kids. “Remember when you said you wanted kids by 35?? Tricked you! Happy Father’s Day to the cutest and the best — we will keep you forever,” she wrote in the caption. Back in March, Duff shared a lengthy post on Instagram as she celebrated her son Luca turning 13. In the post, Duff shared a carousel of solo shots of the teen throughout the years, mixing in a few with photos with his sisters and a throwback image of the pair in the delivery room. "Wow- is time ever a thief. I thought ten years of being a mom felt wild…yet here I am at my son’s 13th birthday," she began her heartwarming caption. "I can’t go anywhere without people telling me what a nice kid Luca is. Sweet, heart facing forward with the coolest point of view. He can talk anyone under the table about soccer, players dating back to the 70’s, specific games that defined history…He’s an amazing creative drawer, a beautiful writer (hopefully more of that in the future) and I *think* taking a new interest in history☺️." "Its been so fun listening as he talks about the world’s history - since I didn’t have an 'normal' schooling experience.. there are definitely some gaps & it’s sure cool to have the tables turned and see how much more he knows more than me…Just in this one instance of course 😉," she continued. "It’s so cool to see his interest shift, his confidence grow…his sure footedness and knowing being learned." "My only son. I love you more than the moon and as far as all the stars in the sky. Hanging with you is the best. Getting a text from you .. the best. Talking late and snacking in the kitchen is the best. Driving you is the best (even though you forget all your s---)," she said. "Watching you play soccer is the best. Listening to hip hop with you is the best (let’s gooo Kendrick and lil tecca). The kind of big brother you are is the best. Your smile is the best. Your humor is the best. you being fully YOU is the best. Being your mom is the BEST. HAPPY 13 Angel , forever standing by to cheer you on. ♥️ -mom."