You can use the fitness tracker- type in "scuba diving" in search option.
It shows me that I burn a LOT, more than any other exercise. Which is weird because I dont think it raises my heart beat much, however I do feel like I burned a lot of calories. Go figure...
Waterproof heart rate monitor sound sooo great.... [sigh...]
Highest weight: approx. 141/142 lbs
Current weight: 132-129 lbs (fluctuates in between)
Goal weight: 120/118 lbs
Current BMI: 20.6-20.2
Highest BMI: around 22.1/22.3
| current weight: 124.8