All 25s should be swum at 100m race pace!
3 rounds:
8 x 25 @ 40″
50 easy @ 1’10”
6 x 25 @ 35″
50 easy @ 1’30”
4 x 25 @ 30″
50 easy @ 2′
2 x 25 @ 25″
50 easy @ 2’10”
All 25s should be swum at 100m race pace!
Time required for 1 round: 18′ 30″; for 3 rounds: 55′ 30″