Indoor bouldering is the loner's form of climbing. Outdoor is feasible too, but even with the small falls I worry about someone being totally alone. Boulderin

Indoor bouldering is the loner's form of climbing. Outdoor is feasible too, but even with the small falls I worry about someone being totally alone. Bouldering does tend to be a little more intimidating and requires more upper-body strength, but just take your time and you'll get the hang of it.