Shelley and Derrick Stewart at the 2024 SCAR Swim Challenge in Arizona

Between 24-27 April 2024, Shelley Stewart competed in the SCAR Swim Challenge, a 4-day 4-lake stage swim in Arizona at the age of 48. She completed a crossing of Saguaro Lake in 4 hours 30 minutes 49.1 seconds. She completed a crossing of Canyon Lake in 5 hours 3 minutes 46.1 seconds. She completed a crossing of Apache Lake in 10 hours 51 minutes 7.1 seconds. All escorted by her husband Derrick.