Is there any way to hide the map or the directional arrow in a “Find Spot” feature in my Bound, so that the player must find the spot without any help?
No, but you can just use an information or mission and put a switch on the next element with the condition that the players have to be close to the location. And maybe another element if the players are too far from it. You should make clear in the instructions, that players should only tap “next” if they think they are at the location.
Find out more about switches in the Step by Step Guide.