Pick TWO of the following:
- 1000m Hypoxic Pyramid Swim*
- 1 Hour Ruck, 50-60 lbs load, how far do you get?
- 1 Hour Bike, hills, moderately intense setting
*Hypoxic pyramid- Swim one lap breathing every 3 strokes. The next lap breathe every 5, then every 7, etc. Go till you fail, then work your way back down. Keep going till you've done 1000m total. This is a GREAT psychological and cardiovascular challenge.