I am scheduled to do a 4 mile walk on Valcour Island in 2 weeks with an Adirondack heritage group. I currently am having trouble with my feet and just received a cortisone shot. I already use personalized orthotics which the podiatrist just altered to make more cushiony in the joint area where I am having trouble. I am concerned about the trails on the island ( some unevenness is said to be expected) and the length of the tour. Wondering if anyone has done some walking on the island and can advise. I don't want to hold the group back or cause a problem.