Mar Azul is an 11-story boutique oceanfront condominium at 600 Grapetree Drive on the southern tip of Key Biscayne, the barrier-island village reached from Brickell by the Rickenbacker Causeway. Completed in 1974, Mar Azul (Spanish for blue ocean) holds 126 residences across two-, three-, and four-bedroom plans from approximately 1,670 to 3,700 square feet, with an average home of roughly 2,800 square feet. The tropical-modernist tower gives every home a deep terrace overlooking the Atlantic Ocean, Biscayne Bay, or the landscaped resort deck below, with floor-to-ceiling glass and many residences fully renovated with custom finishes, open kitchens, and in-residence washer and dryer. Mar Azul sits on a generously sized oceanfront parcel directly fronting one of the widest stretches of beach on Key Biscayne, immediately adjacent to Bill Baggs Cape Florida State Park and the 1825 Cape Florida Lighthouse, the oldest standing structure in Miami-Dade County. The Ritz-Carlton Key Biscayne and the Key Biscayne Yacht Club are within a short drive, with Crandon Park, the Crandon Park Tennis Center, and the Galleria Shops along Crandon Boulevard a few minutes north. The Village of Key Biscayne shops, Costa Med Bistro, and the Rickenbacker Causeway approach to Brickell, Coral Gables, and Downtown Miami all sit within easy reach. The Mar Azul amenity program reads as quiet and family-oriented compared with the taller Crandon Boulevard high-rises and the larger Commodore Club and Towers complexes to the north. A beachfront swimming pool and waterfront sundeck open directly to the sand, with a fitness center, sauna, community social room, penthouse party room, dedicated children's playroom, and BBQ and picnic areas rounding out the shared spaces. Service at Mar Azul includes 24-hour security, on-site concierge, a gated entrance, covered parking with extra storage, paddleboard storage racks, a recently renovated lobby, and a pet-friendly policy with a 25-pound pet allowance and a 90-day minimum rental rule, all of which has kept Mar Azul among the most enduring oceanfront condominium addresses on the southern half of Key Biscayne for both year-round residents and seasonal Atlantic beachfront owners.