Here is a favorite combination workout we like to do once a week during late Summer / early Fall. It is a combination workout of weight training, running, calisthenics, and swimming and/or rucking.
Full body workout in its truest form:
Repeat 4 times: Weighted Pullups max Dead lift 5 or tire flips Hang clean 5 Flutterkicks 50 Fire man carry 25m or farmer walk 50m
Repeat 4 times: Run 1 mile timed Max pushups 1 min Max situps 1 min
Swim 500m warmup — any stroke
Repeat 10 times: 100m swim sprint 50m easy (CSS) (no rest)
and / or ruck 30 minutes in place of swimming