Snapchat, the app that lets you send semi-permanent photos to friends, introduced geofilters on Tuesday. The new feature adds a kind of treasure map-style functionality that slathers filters onto your pictures depending on where you are. So, for example, when you’re at Disneyland, you can plaster a Disneyland filter onto the selfie you took while going down Splash Mountain. The filter isn’t automatically applied, mind you. When you snap a photo, the interface will appear as it normally would. But swipe from left to right, and the badge will pop up. In a video introducing the new feature, Snapchat shows how geofilters work at a coffee shop, the beach, Disneyland and more. It kind of turns your photos into temporary postcards.