I love swimming in the rain, even cold rain. Backstroke emphasis.

1 hour swim workout, swimming in the rain on Wednesday

600 warmup (~8:50 min)

Warmup set 2x (600 yds, 10:20 min)
200 back on 3:30
100 free on 1:40

Main set ( yds, 33:15 min)
Set 1 (500 yds, 8:45 min)

10 x 50s
Odds: backstroke on :55
Evens: free on :50

Set 2 — 4x (1400 yds, 24:30 min)
3 x 100
50 easy on 1:15
Odd rounds: free on 1:30
Even rounds: backstroke on 1:45

Bonus set (100 yds, 2:40 min)
4 x 50 sprint on :40

200 warm down

Total yards: 3400