After your 500th consecutive workout in the weight room, the fluorescent light in the gym starts to feel as drab and stuffy as a fluorescently lit cubicle, and the old routines of arm day, leg day, and ab day just aren’t cutting it.

With warm weather approaching, now is the time to ditch the racks and benches and venture outdoors into the sunshine. Your bleary eyes will find life is better with the wind in your hair, the sun on your back, and the world zipping past.

We’ve ranked the top outdoor sports—mountain biking, trail running, obstacle-course racing, road cycling, and rock climbing—based on exercise efficacy, calories burned, cost of gear, availability, and risk factor to see which one offers the most burn for your buck. The outdoors awaits. Now go become one with nature.