You can find the Weddell Sea east of the Antarctic Peninsula.
Weddell
The large sea named for a British navigator that is located east of the Antarctic Peninsula is the Weddell Sea. The sea was named for James Weddell who was the first to reach it in 1823.
The Weddell Sea is located in Antarctica, which is the southernmost continent on Earth. It is surrounded by the Antarctic Peninsula, Coats Land, and the eastern shore of the Antarctic Peninsula.
The deep bay bounded by the Antarctic Peninsula and Coats Land is called Marguerite Bay. It is located along the western side of the Antarctic Peninsula and is known for its significant ice shelves and glaciers.
The Adriatic Sea is located to the East of the Italian peninsula
Weddell Sea
"When taking a trip on an Antarctic Cruise these are some of the popular travel destinations: the Antarctic Peninsula, the Weddell Sea, and the Ross Sea region."
The peninsula is a little to the east of the "center" of the sea.
The Antarctic Peninsula
Yellow Sea, East China Sea, and the Sea of Japan
casparian sea
The Adriatic Sea.