This causeway offers the best scenic drive value in Miami. Panoramic views of downtown skyline, Biscayne Bay, and stiltsville houses. Pull over at midpoint for photos.

Toll is $1.75 southbound only, free return. Key Biscayne has Crandon Park Beach which is significantly calmer than South Beach crowds.

Perfect half-day trip without the chaos. If Miami had ferry service, I'd recommend that instead, but this causeway drive is next best option.