Endurance.

500m Row/1km Bike.
25 Ab mat sit up.
5 Burpee.
Rest 2min.
400m Row/800m Bike.
20 Ab mat sit up.
10 Burpee
Rest 90sec.
300m Row/600m Bike.
15 Ab mat sit up.
15 Burpee.
Rest 60sec.
200m Row/400m Bike.
10 Ab mat sit up.
20 Burpee.