This is a picture of a map that is folded about four times. In the center of the map is a dotted line that goes toward a big letter "X". It's trying to show you where a treasure is.
This Adventures icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,500 icons, all in the same style and quality.