Swim for 25 minutes.
Every 5 minutes, stop and perform 20 push-ups.
Post distance completed to comments.
Scaling:
If you cannot get to a pool, lake, or other water source, substitute with a run. Intermediate athletes can do this workout as prescribed.
Beginner option / Swim for 25 minutes.
Every 5 minutes, stop and perform 10 knee push-ups.