2018-08-19 10:21:04 [Marilyn's 2018-19 Swim Blog]
After 2 hours Marilyn is swimming faster at 66 strokes per minute instead of her usual 60 to generate more body heat. Water temp is 64 and she has swum 2.9 naut. miles. She is feeding every 45 minutes with food supplements high in carbs electrolytes and protein mixed with hot water.