A sunrise along the Overseas Highway in the Florida Keys is a spectacular and tranquil experience. Here's a vivid description of the scene as the first light of dawn bathes the highway and the surrounding waters:

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**1. Pre-Dawn Hues:**
In the pre-dawn darkness, the Overseas Highway remains shrouded in shadows. The air is cool, and a sense of anticipation lingers as the first hints of light begin to illuminate the eastern horizon.

**2. Still Waters:**
The waters on either side of the highway lie in peaceful stillness, reflecting the muted colors of the sky. The surface is a canvas, patiently awaiting the brushstrokes of the rising sun.

**3. Silhouette of Palms:**
Silhouetted against the gradually brightening sky, palm trees lining the highway create intricate patterns. Their fronds sway gently in the breeze, adding a touch of tropical elegance to the impending sunrise.

**4. Coastal Soundscape:**
As the first light touches the landscape, the sounds of the coast come alive. Waves lap rhythmically against the shore, and seabirds begin their morning calls, contributing to the serene soundscape.

**5. Pastel Palette:**
The sky transforms into a canvas of pastel hues — soft pinks, lavenders, and apricots. The delicate colors paint the clouds and reflect on the tranquil waters, creating a dreamlike atmosphere.

**6. Reflections on the Asphalt:**
The asphalt of the Overseas Highway becomes a reflective ribbon, mirroring the dawn sky above. The road seems to lead into the horizon, inviting travelers on a journey towards the awakening day.

**7. Fishing Piers and Anglers:**
Scattered along the highway are fishing piers, where early morning anglers cast their lines into the glistening waters. The silhouette of fishermen against the sunrise forms a picturesque scene, capturing the essence of a new day.

**8. Island Keys Emerging:**
As the light intensifies, the outlines of the individual Keys emerge from the darkness. Each island becomes a distinct feature, linked by the highway, and the architecture of bridges connecting them adds to the visual poetry.

**9. Boats at Anchor:**
Moored boats in the nearby bays and harbors gently rock with the incoming tide. Their masts create patterns against the sky, and the quietude of the early morning sea is a prelude to the day's maritime activities.

**10. Sun's Arrival:**
Finally, the sun makes its grand entrance, peeking above the horizon. A radiant burst of light transforms the scene, casting a warm and golden glow on the Overseas Highway, the surrounding keys, and the vast expanse of the Atlantic Ocean.

In this serene sunrise along the Overseas Highway in the Florida Keys, the road becomes a metaphorical journey through the palette of dawn, offering a tranquil and awe-inspiring beginning to a new day in this tropical paradise.