Located in the highly sought-after Mariner, 70 Mariner Drive offers the perfect combination of modern living, family-friendly surroundings, and beautiful coastal charm. Just 10 years old and boasting nearly 2,500 square feet of finished living space, this impressive home is nestled in one of Westmount's most desirable neighbourhoods overlooking the shores of Sydney Harbour, where fresh ocean air and peaceful surroundings are part of everyday life. A paved driveway leads to the beautifully landscaped property, creating outstanding curb appeal from the moment you arrive. Step inside to a bright, open-concept main level designed for both comfortable family living and entertaining. Rich dark hardwood floors flow throughout the main living area, while large windows fill the space with natural light. The spacious living room features a modern glass railing overlooking the basement staircase, adding a contemporary touch to the home's welcoming design. The open dining area offers patio doors leading to the backyard, while the stunning kitchen is equipped with stainless steel appliances, custom wood cabinetry, and a large peninsula with bar seating, creating the perfect gathering space for family and friends. Down the hall are two generously sized bedrooms and a well-appointed main bathroom. Conveniently located near the entrance is access to the attached garage, along with the spacious primary suite featuring a deep walk-in closet and private ensuite bath. The lower level provides exceptional additional living space with a large family room, an oversized bedroom, a three-piece bathroom with walk-in shower, laundry hookups, and a spacious utility room offering excellent storage. Outside, the backyard has been beautifully maintained and is ready for summer enjoyment, complete with an above-ground pool, attractive storage shed, and lush green lawn. Ideally located within walking distance of Sydney River and only minutes from schools, shopping, restaurants, and hospital.