You can add areas that players can discover to your map.

Areas like this you can add to the DT_Areas data table. In this data table duplicate the row of any existing area. Here you can choose its name, description, image and amount of experience player will get after discovering it. Don’t set BP_TeleportationPoint to true if you want it to be just an area.

Drag the area blueprint to the map and set its size to whatever you want. Area will be discovered when a player hits this sphere collision.

In the details you should initialize the area with your area data table row. If you want it to be discovered by default, you can set the Discovered variable to true.