Ironman Distance Swim

What are the places hardest physical challenges one can go?

I am looking at this in three layers: the strength / toughness, and combat. I'm thinking along the lines of the Navy SEALS training (which has things like the formation of cold water submersion and hell week) for strength / Resistance, the formation of an ironman triathelon level resistance (2.4 km swim, 112 mile bike, 26 km run). However, I can not think of a specific test of combat which is along the same line as these others in terms of raw intesity and willpower. There's one in a competition, but the things I mentioned really test their limits and that's what I'm looking to come up with. Any ideas of other things that are so incredibly challenging as these things. (Leave out things that are really similar, such as training programs for other military branches, or other types of distances, etc.)

delivery. It is the total agony and lasts for 18 years.

Half Ironman Distance Swim

Going Long: Training for Ironman-Distance Triathlons $17.33 Ironman-Distance triathletes can get the maximum physical and mental benefit from training using this guide. Includes sample training plans and case studies along with information on training specifics for swim, bike, and marathon. Photos. Charts. Tables.

Going Long: Training for Ironman-Distance Triathlons $16.99 New – Ironman-Distance triathletes can get the maximum physical and mental benefit from training using this guide. Includes sample training plans and case studies along with information on training specifics for swim, bike, and marathon. Photos. Charts. Tables.

Going Long: Training for Ironman-Distance Triathlons $26.02 Used – Ironman-Distance triathletes can get the maximum physical and mental benefit from training using this guide. Includes sample training plans and case studies along with information on training specifics for swim, bike, and marathon. Photos. Charts. Tables.

Ironman 70.3 $17.95 Ironman 70.3 is the abbreviation for triathlon competitions that cover half the distance of a classic Ironman Triathlon. The Ironman 70.3 consists of a 1.2 mile swim, 56 miles of cycling and a 13.1 mile run. A particular highlight of this book is its great amount of detailed training plans. There are in-depth examples of core and peripheral training and heart-rate dependent pace levels T1-T8, which help to illustrate the year round training recommendations. It also features advice on swimming, cycling and running training, equipment, strengthening and stretching, typical training errors, recover, self-motivating, performance testing and motivation tips, as well as anecdotes and emotional stores from competitions.