Cycling. I don't (yet) have all the fensi equipment nor an expensive bike and don't do long, exercise-like laps. It is much more incorporated into my daily life. I have an oldschool road bike which I use for my commute and then every day after work go around the city with it for some hours (with small breaks for say shopping/eating; ca. 25-30 km per day). Longer rides on the weekends (average ca 100-120 km per weekend). Never was keen on sports but was always into little daily adventures and this combines the two. Last time: yesterday.