Detect and climb elevations

Hi everyone. I'm not sure if climbing is the right term but I would like to know if there was any tutorial on how to make the character detect little elevations and climb them.

 

If you want NavMeshAgents to simply walk over small slopes and such like regular terrain (think of hills and ramps and such) you can simply tweak the max slope value in the NavMeshAgent.
If you're talking more like ridges and ledges your character needs to climb over, you can use OffMeshLinks to connect the bottom and top of the ridge.