Running and indoor bouldering. I usually sign up for half-marathons periodically throughout the year as a forcing function to make sure I run frequently. Boulde

Running and indoor bouldering. I usually sign up for half-marathons periodically throughout the year as a forcing function to make sure I run frequently. Bouldering is challenging physically and mentally (figuring out the right way to make it up a route) and the indoor version is reasonably safe.