My youngest was always climbing everything, and then bloody jumping off things backwards!
Multiple A & E attendences for stitches and head injuries and a couple of broken bones over the 2-3 yrs she was a 'climber'.
She worked out (at approx 10mths old) that if she opened the kitchen drawers, she cloud use them as a ladder to get onto the counter and into the wall cupboards.
She climbed over stairgates at 1yr old, and was able to push dining chairs over to wherever she wanted to climb to!
I even had to put a big potty into her bedroom overnight and lock her (hook & eye lock only) in her bedroom overnight after the time she climbed over the top and bottom stairgates, turned all the gas hob rings on and emptied a whole sack full of dry dog food into every pot, pan and colander we possessed and then pushed a chair over to the front door to reach the keys hanging there and unlocked the front door!
Once, at nursery, she managed to get into the kitchen over the stairgate and got the keys for the nursery cupboards, unlocked the cupboard for the paints, and was caught handing out paint to the other kids.
Thankfully, she did eventually outgrow the climbing 'phase', though she still decided to take up every, single, bloody dangerous sport she could find, Trampolining, ice skating, climbing walls, horse riding, gymnastics etc.
She now teaches one of these dangerous sports for a living.
Your DC is gonna be who they're gonna be, regardless of what you do, so just get used to trying your best to limit the danger they expose themselves to while you can, and if you can find a class that at least teaches them to do dangerous stuff more safely, get DC enrolled asap.