1 mile or so of dual track dirt road, 2.5 miles or so of single track (intense left and right turns in tunnel of mangrove trees), 2.5 miles or so of dual track with sugar sand (ugh!)... the rest is a cooldown ride back on sidewalks or reverse and go back for more!
How to get there:
Ulamay park is off of Sykes Creek Road/Banana River Road between 528 and 520 in Merritt Island. Park by yellow gate... bike pass the gate and turn left (1/4 mile in, you'll pass a lookout tower). The trail runs north from the tower to 528; along the south side of 528 to Banana River Road. Take the road back south to the park.