A good example is the “camping” icon. There is also an icon for “tent”, “camping + tent”, “camping car”.
Hope that makes the site easier to understand.
Please note that the alternative icons are not included in the zip files.
LicenseIcons are availabe unter the Creative Commons Attribution-Share Alike 3.0 Unported license (CC BY SA 3.0) which lets you remix, tweak, and build upon our work even for commercial reasons, as long as you credit the project and license your new creations under the identical terms.
Please credit as follows: Maps Icons Collection https://mapicons.mapsmarker.com