I’ve always thought that Antarctica will be the most physically difficult expedition of all our 7 10DL expeditions. Until now I never had a structured way of thinking about how to measure “difficulty”. From a energy expenditure perspective, Antarctica will be the hardest. Here’s how I performed my calculations. 
1. The first step is to breakdown [...]

Tags: amount of calories, athlete, australia, body, caloric expenditure, calories per hour, cold, continents, cycling, degree, effort, exertion, expedition series, Hiking, Latitude, ming, open water, range, Temperature, Training

It’s only natural that people should ask why we swim without wetsuits. The water in the San Francisco Bay varies is normally in the 50F range. That is cold compared to an 80F swimming pool or a 95F bath.

212F Water Boils
95F Hot Bath/Shower
80F Swimming Pool
63F San Francisco Bay Water Temperature (Summer)
47F San Francisco Bay Water [...]

Tags: blog, channel crossings, cold water, competitions, degree, degree water, existance, F Swimming, Francisco Bay, friend michelle, hot bath, macy, michelle macy, range, sauna, school friend, shout, Shower, Summer, swam, swimmers, swimming, swimming pool, Temperature, unfair advantage, Wetsuits