Manawa trails are rideable, couple tacky spots here and there.
There are three trees down and the Trail Leader has a plan to take them out.
1st is on the warm up loop shortly after you go thru the drainage ditch.
2nd is right after you come out of Tony's play ground and make a right and do the Long's Landing loop (side towards power plant)
3rd is located just before you enter No Second Chance.
Have fun crossing the water obstacle in the run off ditch on your way out going thru the grass field area. Hit it fast and make a big splash.