Welcome to 16139 Saint Croix Circle, a beautifully updated waterfront residence in the highly sought-after Seagate community of Huntington Harbour. Ideally situated along a deep-water channel, this exceptional 3-bedroom, 2.5-bath home offers an effortless coastal lifestyle with a private 30-foot boat slip directly in front of the property, complete with dock-box power and a bonus dock extension for all your water toys. Bright, inviting, and move-in ready, the home is enhanced by abundant natural light, refreshing ocean breezes, dual-pane windows, an upgraded electrical panel, bonus third floor loft, and a conveniently located corner garage. Designed for both comfortable daily living and entertaining, the outdoor space includes an above-ground spa-perfect for unwinding after a day at the beach or on the water. Upstairs, two generously sized bedrooms share an updated full bath. The primary suite is a peaceful waterfront retreat, featuring vaulted ceilings, water-facing views, and a private balcony ideal for enjoying Huntington Harbour's colorful sunsets. Seagate residents enjoy resort-style amenities including pools, spa, clubhouse, tennis courts, pickleball courts, and more. Whether boating from your front door, entertaining friends, or relaxing beside the water, this is a rare opportunity to own a turnkey home in one of Huntington Harbour's most desirable waterfront communities.