The next time someone thinks you are crazy for going on a “short” 10 mile run or spending three hours on your bike, let them know about Charlie Wittmack’s World Triathlon.

12,000 miles total, beginning with a 275 mile swim down the River Thames and ending with a climb of Mt. Everest. And sandwiched in between:

The 9,000-mile bike ride might seem relatively easy compared with the swim and the climb up Everest, but even there Wittmack has his work cut out for him.

“I have to get to the border of China and Kyrgystan by the end of October in order to get over the Tibetan plateau to India,” Wittmack said. “I’ll be riding over harsh deserts through areas with political instability.”

So…(talking to myself now)…you probably can squeeze in that workout today you’re not sure you have time for.