Vessel #1, with two persons on board, was being paddled into a small current when Vessel #1 rotated sideways and was pushed into two downed trees.  The force of the water capsized the canoe against the trees, submerged it, and held it against the trees under the water.  The Operator and Occupant, along with another boater, tried to dislodge the canoe, at which time the pressure cracked the canoe in half.
Mifflin                       