Miami Beach is not known for its abundance of off road trails. My friend ,Ryan (1996 Chevy Tahoe), and I take every oppurtunity to explore and find new trails.
Pictures from 10 February 2005. This is a maintenance trail just off the I-75.

For South Florida, this is a steep decline.
Same spot, different angle.
Going up.... 
A dirt hill which leads to a new network of trails. It started out flat and then rose to a 45 angle. Ground was made up of loose rocks and coral sand. 