This is totally up to you. You could do the same activity each day, or you could even challenge yourself with a different form of exercise for each of the month! We recommend you include some days of lighter exercise, for example walking, so that you don't burn out.
IMPORTANT: Following latest government guidelines, only one form of exercise a day can be outside, for example a run, walk, or cycle - alone or with members of your household.
You can exercise for as little or as long as you want each day. Just so long as it is enough to make you get that sweat on!