It’s tempting to want to climb from the rim down the river along the Bright Angel Trail, but you have to consider your realistic ability to complete the hike. It’s 4,380 feet in altitude and can get scorching hot. This combination can easily lead do severe dehydration and heat exhaustion. There are about 250 rescue operations a year. One of the better known incidents there was the death of 28-year-old Avik Chakravarty. He climbed in the heat and couldn’t handle it. A Preventative Search and Rescue team (PSAR) was created afterwards to help hikers with whatever they may need.