Echo Lake Trail is part of the TRT Tahoe Rim Trail system. The trail begins at a marina on Lower Echo Lake. Many hikers start with a 2 mile boat ride to the far side of upper Echo Lake, the boat ride, which costs about $10. From there you can take the popular hike along Upper and Lower Echo Lakes back to the boat launch where you put in or hike up into the Desolation Wilderness Area To Aloha Lakes. I hiked up to Tamarack Lake and the scenery was spectacular.