Gray's Peak trail starts where Hanna Flats and Grout Bay trails meet on the 2N97Y fireroad. The trail is highly recommended if you want to push a sustained 2.2 mile climb to the top of the mountain for a great view of the lake. This is an out-n-back only trail, and the descent is one of the funnest in Big Bear with its (mostly) hard packed dirt, good corners, a few technical sections and a handful of fast stretches - virtually all downhill. Enjoy!
After you climb and descend Gray's Peak, you can also head out and back to Hanna Flats . Enjoy the return as it is twice as fast as going out.