A bicyclist from Houston was hit by a car while riding Saturday in the 19,000 block of FM-3005 west of Jamaica Beach.
Officials say he remains in critical condition at UTMB Hospital.
Jon Trevelise, 68, was riding east at about 11:30 a.m. when he was hit by a car going in the same direction.
He was taken by ambulance to the University of Texas Medical Branch.
There was no indication of alcohol being a factor in the accident and the driver was not charged.