This deck appears to be a cave of some sorts. Blue light filters through – quite bright in some areas, dark in others – but the source is unknown. Most of the cave is flooded with water; the light color on the map represents shallow water (a few inches to a foot), the medium color represents deeper water (one to four feet), and the dark color can go down quite deep (generally four to ten feet, but you’ll find a few spots where it appears bottomless). Be careful – there are a few drop offs! The colors are player reference only, so watch your step!