When the land is criss-crossed by a lot of rivers, travel on a horse becomes a chore. Small rivers can be jumped over... if you time your jump right. All larger ones - dismount, attach lead, swim across, walk some more to get the horse out of water, return, detach lead, pick lead, mount. And twenty seconds later the river turns around and you need to repeat the whole dance.
It's a horrible chore that really detracts from the joy of exploring on horseback. I'm fine with dragging the horse behind a boat across the sea, as it's not nearly as frequent, but I'm sick of the rivers.
Any better way to quickly, easily get a horse across a small span of water?