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Tammy van Wisse

Tammy van Wisse is a long-distance swimmer from Australia. In 1990, she won the Lake Zurich Swim. As a marathon swimmer, she swam the Murray River in 2001, a distance of 2,438 kilometres (1,515 mi). She also swam the English Channel in 1993 in a time of 8 hours 35 minutes, and again in 1994 in a time of 8 hours 33 minutes. In 1996, she became the first and only human to swim across Bass Strait, recording a time of 17 hours and 46 minutes for the 97.4-kilometre (60.5 mi) journey.

Health
In October 2022, van Wisse was diagnosed with breast cancer. Following the diagnosis, she underwent a double mastectomy; however, her recovery was complicated by a severe infection and septicaemia, which required multiple emergency surgeries to stabilize her condition. She subsequently endured six months of chemotherapy and radiation therapy before being declared in remission in July 2023. In October 2025, approximately two years after entering remission, van Wisse announced that her cancer had returned. After experiencing pain she initially attributed to physical training, medical scans revealed she had developed stage 4 metastatic breast cancer, which had spread to her lungs and bones. Although the condition was diagnosed as incurable, van Wisse stated that it remains treatable, and she subsequently began a regimen of hormone and radiation therapy to manage the illness. ==References==
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