Even if they don’t have a horse riding option, you should never be listing the activity as something that it isn’t like mountain biking.  If you don’t see the specific activity listed, you should use the “workout” option.  Don’t mislabel it as a totally different activity type.

Okay, I’ll try the “workout” option next time. Sorry if I made you (anchskier) upset by mislabeling it, I just chose the next best thing that resembled going through terrain, using mostly leg muscles, and went faster than a walk, jog, and run

The reason I didn’t go for “workout” in the first place was bc I interpreted it as a gym or home workout.

Seeing that people can use this app as competition against other Strava users, I’m using this app for my personal gain. My account is private, so don’t worry, I’m not competing with anyone who is actually mountain biking lol 

They should still add a horseback riding option  

Thank you for the tip

Hi ​@Nia_777, this has been already requested and unfortunately, Strava isn't currently planning to add any new activity types. But you still might want to vote for the following idea, just in case: