Seaquestria is a magical underwater realm featured in the animated series My Little Pony: Friendship Is Magic. It is home to various sea creatures, including the seapony species, which can transform from ponies into aquatic beings. The vibrant environment is filled with colorful coral reefs, underwater plants, and unique marine life. In Seaquestria, the inhabitants live in harmony, using their abilities to create beautiful music and maintain the balance of their underwater ecosystem. The realm is often depicted as a place of friendship and cooperation, showcasing the importance of community and understanding among different species.