Unlock the full potential of the Florida Keys commercial market with this offering of a rare combined set of parcels including Lot 2 & Lot 3 on Overseas Highway, and an additional parcel of ~3.0 acres of submerged bay bottom located in the heart of Marathon. These adjacent parcels and bay bottom present a unique opportunity for developers, investors, or end-users seeking high-traffic frontage, open-water access, and bay bottom rights. Property is zone Mixed Use Commercial (MU-C). Currently has two concrete dwellings on-site with 3 building rights, deep water access, and dockage. Direct open water with panoramic views and potential for dock development, boating, or a water sport business. Ideal for possible hotel/motel, retail, restaurant, marina, or mixed-use commercial ventures (subject to city approval). High visibility corridor daily on US-1/Overseas Highway. Benefit from strong foot traffic and year-round visitors. Ownership of the bay bottom opens unique possibilities for water-related commercial activity. Rare opportunity to acquire two contiguous parcels with waterfront, bay bottom rights, four dwelling rights and highway presence. Whether you're envisioning a boutique resort, a landmark restaurant on the water, or a marine-focused business, this combined site offers everything you need - land, location, and lifestyle.