The sea is beautiful.

The Caribbean Sea is known for its crystal-clear waters and stunning beaches.

The deep-sea is home to many unique and mysterious creatures.

The Irish Sea separates England and Ireland.

The Baltic Sea is located in Northern Europe and is surrounded by the Scandinavian Peninsula.

The ship sailed into the open sea.

The Red Sea is a saltwater inlet of the Indian Ocean between Africa and Asia.

The North Sea is known for its rich marine life and offshore oil and gas reserves.

The sea anemone is a beautiful creature that lives in the ocean.

I packed some sea biscuits for our camping trip.