Heart Rock - This is an easy trail near Crestline, CA, USA.

At the bottom of the trail there is a large pool in which people swim during the summer. However, before you go down the steep trail to reach the pool, walk around an outcropping of rocks to the right at the top of a cliff and you will see a beautiful natural sight—a large heart-shaped pool that has been carved into a solid rock cliff by the force of water.