Austria 2025 3 euro colour collector coin glowing under UV light – Sea slug.

This is the eleventh coin in the “Glowing Water World” series.

The reverse of the coin features a wide band resembling an ancient porthole, framing an aquatic scene with a white sea slug at its center. In the background, a coral reef and a school of small fish can be seen.

The obverse of the coin depicts silhouettes of all 12 magical sea creatures from the “Glowing Water World” series. Air bubbles rise among them, and the tail fin disappears beneath the waves on the right.