Don’t let the triple digit heat of Phoenix stop you from making a trip to see the Diamondbacks. Chase Field was the first retractable roof ballpark to include a grass playing field. The roof is kept open during the day for the grass to grow and closed a few hours before first pitch. A high capacity HVAC system drops the temperature to a comfortable level for fans to enjoy the game. Chase Field is also the only MLB ballpark with a swimming pool in RF, so if you are traveling 35 deep see if this Field Level suite is available.