::: {.cell hash='08_Maps_cache/revealjs/unnamed-chunk-67_92b6fe10f8b90f26a17a9dc739b05cd5'}

```{.r .cell-code}
ggplot() +
  geom_sf(data=summarise(italy)) +
  geom_sf(data=italian_rivers,
          color="blue",
          fill="cyan") +
  geom_sf(data=italian_lakes,
          color="blue",
          fill="cyan")
```
:::