I did the Ultra Ragnar and had an absolute blast! The course starts North and goes south to downtown Phoenix. A lot of the course is through desert.... definitely a mental strain, but nice change of scenery from the midwest! The day runs were around 85 degrees and night runs around 30, so lots of clothes were needed. Saw a coyote or two and thankfully no snakes. Such a fun race! I would do it again in a heart beat.