Whatever you climb make sure the tree is sturdy and you have a good solid well anchored platform to stand on. Mine is 10 feet high, roughly three meters. But the terrain to the front of the stand drops.
The tree stand in the photos is in a sweet gum tree. My dad hates them and if it eventually dies it'll be no loss to us. I picked the sweet gum because it is a very strong tree. Poplar, oak, and pine are everywhere, but this one was my tree of choice. I'm 47 and my Dad is 74. He doen't hunt anymore nor does he visit the woods, unfortunately.