December ultramarathons in New Jersey, United States

Seven loop course with rolling hills, open fields, and New Jersey farmland; over 32 miles on 95% trails and double track in Holmdel Park.

Paved 3.75-mile loop at Cooper River Park, mostly flat with gradual inclines and two notable hills, featuring water views and Philadelphia skyline

Scenic 100k point-to-point route from Horseshoe Lake, featuring trail and road sections through state parks, lakes, and picturesque New Jersey towns