Lots of different terrain. You have the Aliso/Wood Canyon out and back. There is Wood Canyon/Mathis/Cholla. Lots of different options. Most popular is Wood Canyon/Cholla/Rockit/Coyote loop.
How to get there:
I -5 to Laguna Hills exit Alicia Parkway. Supergo on right hand side if your exiting from the North. Alicia Parkway towards Aliso Viejo. You will see the signs.