Welcome to 280 Sunnyside Drive, a stunning lakeside retreat nestled on the shores of beautiful Lake Nosbonsing in Bonfield. This exceptional 6 Bed & 5 Bath property ( with the option of 3 separate living spaces/kitchens) offers the perfect blend of year-round comfort and seasonal charm, featuring a spacious walk-out bungalow and a beautifully finished, winterized one-bedroom guest cottage. Designed to embrace natural light, the main home showcases Viceroy-style windows, vaulted ceilings, warm wood accents, and a cozy wood-burning stove. The open-concept living and dining area flows seamlessly onto a covered upper deck with a screened-in section ideal for enjoying serene lake views, day or night. Perfect for entertaining, the kitchen offers ample space to host gatherings, while the main floor includes 3 bedrooms and 3 bathrooms. The primary suite features a walk-in closet and four-piece ensuite. The second bedroom enjoys its own private three-piece bath, while the third offers a private balcony. A stylish two-piece main bath includes the laundry area for added convenience. The finished walk-out basement provides flexible living with a rec room, kitchenette, two bedrooms, and a 4 piece bath perfect for guests, extended family, or potential in-law suite. Step outside and enjoy two docks, a sandy beach, a fire pit, and expansive waterfront ideal for year-round recreation from summer swims to cross-country skiing. The attached, winterized guest cottage adds even more value, offering a charming one-bedroom layout with a clawfoot tub, beautiful wood finishes, plenty of natural light, and a private screened-in porch. Additional features include a detached double garage, in-floor oil hot water heating. Shore allowance is owned. Move in and experience the very best of lakefront living every season of the year.