The best thing about hiking in Thunder Lake is that there are incredible options for all skill levels. For beginner hikes, if you can walk for four to six hours with little elevation gain, you are good to go! Intermediate hikes will see a little more change in elevation and hikes will start to increase in length, hiking anywhere between four to eight miles. Advanced hikes are full-day treks with steep descents and challenging switchbacks. Keep in mind, the weather in summer can be very hot and you’ll also be packing a daypack filled with water and other things you’ll need throughout the day.