Woman celebrates 90th birthday by riding Kings Island coaster
July 13, 2012 at 11:50 PM EST - Updated June 27 at 5:47 PM
MASON, OH (FOX19) - Mount Lookout resident Thelma Gratsh took the plunge Friday on the Diamondback roller coaster at Kings Island.
Thelma celebrated her 90th birthday by taking a ride on her favorite roller coaster, Diamondback.
Thelma estimates she has ridden Diamondback more than 100 times since the ride opened in 2009.
She has had a season pass to Kings Island every year since they were introduced in 1979 and is believed to be the oldest park guest to have taken a ride on the 230-foot tall steel roller coaster, which reaches speeds up to 80 miles per hour.