There are several great hikes and trails and a Trading Post within the Agua Calient Indian Canyons, including the most popular Palm Canyon Trail.  To get there, take Palm Canyon Drive south from downtown Palm Springs.  In a few miles you'll see the entrance to Agua Caliente Indian Reservation.  There's an entrance fee for the area - $9 each in 2014 and $7 each for seniors in 2014..