re: Grand Canyon

If you are into hiking/camping a Rim to Rim hike is incredible. I went last summer and we stayed in a cabin on north rim night 1, backpacked across to the south rim and camped nights 2-4 inside the canyon, stayed in Sedona night 5. A very unique experience but camp permits have to be reserved 3 months ahead.

If you are going in the next month or so you could always spend a few days in Phoenix for spring training, then check out the south rim and Sedona for a day or two. I'm pretty sure the north rim is closed until first of May.