30:00-60:00 easy swim, hike, bike, row, and or ski erg – pick one and cruise through at a very easy pace or cycle through a few different pieces every 2:00-5:00
30:00-60:00 easy swim, hike, bike, row, and or ski erg – pick one and cruise through at a very easy pace or cycle through a few different pieces every 2:00-5:00