2024Portugal - Europa Underwater Fauna and Flora - First Day Cover

The ocean is now one of the few places on Earth where you can experience true adventure, filled with discovery, surprises, and never-before-seen wonders.
The open sea is a vast expanse, but in the immensity of the ocean, there are also refuges and dark abysses, ideal places for the many creatures that seek to go unnoticed by humans, and where even science and knowledge have difficulty shining light on the unfamiliar.