What happens next?

How to burn 300 calories in 30 minutes
Go for a jog.
One great calorie burning exercise to try is jogging. It's a higher impact exercise that requires the use of many large muscle groups to perform.

OPTIONS:
A). Looking for a gym with more fitness centers or running facilities is a good choice. Jumping on elevated platforms such as trampolines can be great for jogging as well.;
B). To burn at least 300 calories in a half an hour, you have to jog or run. Aim for your pace to be around a 10-minute mile or 6 mph (if you're on the treadmill).;
C). The less muscles your perform, the lower your overall overall calorie burn will be (essentially, more calories) and the further your total calorie intake will go. You can use additional weights if you prefer the level of impact.;
D). For optimal results, hop on a treadmill and run for at least a 30 minute mile (16 km). This moderate activity burns around 240 calories while keeping you physically fit.;
B).