Our breeder, knowing that I'm a hiker, was quite firm with me:  "No big physical challenges until he's a year old".  Don't want any growth-plate injuries in the growing legs.

I made the mistake of coming to believe these animals were indestructible, but Al hurt his leg one bad day.  I never saw anything happen, but I suspect he tweaked it somehow when we got into some thick blowdown on a neglected trail.  Usually, I try to help them over rough spots (they often just jump over the obstacle and laugh at me), or help them find the path of least resistance, but this time I had to scout around to find the trail, and then call him to me, so he ended up struggling through some thick stuff on his own.  I wonder if his leg got caught in tangled roots or something?   Anyway, don't let this happen.  They will attempt to surmount obstacles that are too much even for them.

Our two recognize "Corgi Toss!" as a standard command, so whenever I say that, I have to be ready, because they will jump right into my arms, expecting an assist (sometimes they spurn help; it hurts their pride).

Also, since your guy is also a black-backed tri, if you find him getting hot in summer sun, check out the Chillybuddy cooling vest (see my page for photos).  It really does help.  You have to keep it damp.  The mfr makes custom sizes for $15 extra, and the standard size is a bit short for a corgi.

Welcome Rebecca and Timber! Look u0p John Wolff, he and his corgis hike all over Oregon. My SIdney is a therapy dog :)