Here we are not yet into Summer and many of us are already getting bored with our workout routines. Feeling bored after doing something more than once or twice is totally normal. Why do you think I use a different cardio machine every time I go to the gym? Doing the same cardio over and over again would bore me to tears. The same thing goes for my outdoor workouts too.
If you're starting to feel bored in your outdoor workouts then try something as simple as changing up the route you take. Whether you're on bike or on foot, a new route may provide enough variety to keep you motivated for a few weeks. When you get bored with your new route, time to switch it up again! There is no rule that says you have to do the same thing everyday, so don't.