Bike + trainer indoors, bike outdoors. Preferably away from busy roads. Make sure you have hills, otherwise 15 mi is a minimum. Bike club is good, there's a bit

Bike + trainer indoors, bike outdoors. Preferably away from busy roads. Make sure you have hills, otherwise 15 mi is a minimum. Bike club is good, there's a bit of peer pressure which creates a routine. Also rope jumping but be careful if you're too heavy, buy good shoes, otherwise you'll injure your feet.