When hiking per mile you usually burn at least 100 calories for each mile you hike so if you hike for 4 miles then you should burn off 400 calories during the 4 miles hike.
A 4 mile hike is certainly great exercise for losing weight as well as giving you a great cardio workout as well so you boost your heart health and keep your body active as well as lose weight.
I love to go hiking and if I hike up hill I burn off more calories than if I were to just hike without a hill but still hiking anywhere is a great exercise as well as fun and gets you out into nature.
I even hike sometimes in the winter when it's above freezing and it keeps me fit and healthy.
Hiking is a wonderful workout and helps you lose weight and keep the weight off.