Her birthday skydive was a tandem jump in which she was in harness with another person. The jump took place Saturday near the Melkbosstrand area north of Cape Town.
Wearing a red jumpsuit, Harwood was joined in the air by 15 family members and friends who participated in groups of three. Harwood said it was wonderful seeing all the others around her.
Harwood said this was her third skydive. She did her first when she was 92 years old in 2007.
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In a shark cage dive the participant goes underwater in a cage in an area where sharks are fed chum, bits of cut up fish meat, by tour operators.