We're gonna see how GIS can help us to visualise physical coastal processes. And one of those ways is to use historical images or historical imagery. And a very good way to do that is to use the Esri Wayback app, which is a kind of library of historical satellite and aerial imagery going back for about 10 years already. Let's find out what it can show us about the Azure Bridge in Gozo. So we're gonna search for Gozo just here. So I'm gonna type Gozo in Malta, and it appears, there is Gozo with its country code, MLT. So I'm gonna select that and it zooms straight to it. Now it goes there quite quickly. So let's have a little look and see exactly where that is in the world. We just zoom out for a moment we can see that Malta is an island in the Mediterranean Sea. It's just south of Italy, and we can see exactly where it is if we just move in a little bit more slowly. There's the coast of Tunisia in Africa, and there's the coast of Sicily, the centre of Italy. So we have Malta, including Gozo, just to the south of Sicily. And the Azure Bridge was located on the western side of Gozo. So we'll have a look at that in a little bit more detail now. The location of the Azure Window can be a bit tricky to find. So a quick way is to look for a nearby bay, which we're gonna type in here now. It's called Dwerja Bay, Malta. So if we zoom into that, we'll probably find it quite easily. Well, we can see Dwerja inland sea, so it's near there. However, what you'll notice is the imagery is showing different years. What we actually need to do is go back before the Azure Window disappeared, which was in 2017. So we go back to 2014 and click that, we can hopefully see it. And if we zoom into the coastline, indeed we can, it's right there. Then we need something called swipe mode. And you can see an icon on the left, and it says toggle swipe mode. So if you click that, it then splits the screen so that you've got photos from potentially from two different times and two different sets of spatiotemporal data. So we're going to leave the 2014 image, but on the other side, we're going to change to some time after we know that the Window collapsed. So to be on the safe side, I'm gonna click on 2019. The reason is that 2018 is quite close to that time, and sometimes these dates aren't entirely accurate. So I'm gonna click 2019 and see what happens. So hopefully you can see that we've got a different image on the right hand side. So we're gonna use the swipe tool to see what that reveals. So we're looking at 2014, and then we're going forward to after 2014, around 2019, and sure enough, we can see that the Azure Bridge was no more, it had been destroyed by coastal erosion, by physical processes. Now, it'd be nice to be able to share this swipe with other people and for future reference, and there are three ways you could do that. One is to copy a link to the clipboard from this page, and if you share that, it'll take you to exactly this spot with the years concerned. Another way to record the swipe from the screen using software that's appropriate for that and edit it later. And a third way within the Esri back app itself is to create an animation. So we go to toggle animate mode, and what you're presented with is the possibility of all the years that we have, and you can see it scanning through those at the moment. That can be quite useful, but in our case, we're gonna keep it simple and just select the two years we were looking at. So we untick the years that we don't want, 2018, and then all the years after 2019. So we literally have two years. And the animation speed, as you can see is very quick, probably too quick. So we're just gonna slow that right down so it's a little bit easier on the eye. Then we can download the animation by clicking this button here. And we're offered lots of choices, perhaps too many. The horizontal ones are probably gonna be the most useful, and we do that, click one of those, and it will create the MP4. And once downloaded, we can see it's ready there, we can convert that if we need to or want to to animate a GIF.