East Redonda Island is a coastal island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 in British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, part of the Discovery Islands

Discovery Islands

The Discovery Islands are the islands in the Discovery Passage between Vancouver Island and the mainland in British Columbia. These islands are sometimes considered to be part of the Northern Gulf Islands....

 archipelago. It lies just to the north of Desolation Sound Marine Park

Desolation Sound Marine Provincial Park

Desolation Sound Marine Provincial Park is a provincial park in British Columbia, Canada, and is located approximately 32 km north of Powell River and 150 km north of Vancouver....

, which is located off the north end of the Malaspina Peninsula

Malaspina Peninsula

The Malaspina Peninsula is a peninsula in the northern Gulf of Georgia-Sunshine Coast region of British Columbia, Canada. It extends northwest from the town of Powell River, which lies near its isthmus, past the settlement of Lund, to Desolation Sound...

 at the mouth of Toba Inlet

Toba Inlet

Toba Inlet is one of the lesser, but still principal, inlets of the British Columbia Coast. It is fourth in the series north from the 49th parallel which begins with Burrard Inlet, which is the harbour for the city of Vancouver...

This island is separated from the larger West Redonda Island

West Redonda Island

West Redonda Island is an island in British Columbia, Canada. It is part of the Discovery Islands, an archipelago between Vancouver Island and the mainland, and between the Strait of Georgia and Johnstone Strait....

 by the Waddington Channel. The eastern side of the island is separated from the mainland by the deep Homfray Channel. Deeply incising this island from Waddington Channel is Pendrell Sound, which runs toward the northeast. At the northern end of the island is Pryce Channel.

The eastern half of the island is home to the "East Redonda Island Ecological Reserve", a preserve established for forestry research and forest growth. It
is 6212 ha (15,350.2 acre).

The highest point on East Redonda Island is Mount Addenbroke at 1591 metres (5,219.8 ft). (50° 14' N; 124° 41' W)

Both Redonda Islands were sighted in 1792 by the Spanish explorers Galiano

Dionisio Alcalá Galiano

Dionisio Alcalá Galiano was a Spanish naval officer, cartographer, and explorer. He mapped various coastlines in Europe and the Americas with unprecedented accuracy, using new technology such as chronometers...

 and Valdés

Cayetano Valdés y Flores

Cayetano Valdés y Flores Bazán was a commander of the Spanish Navy, explorer, and captain general who served in the French Revolutionary and Napoleonic Wars, fighting for both sides at different times due to the changing fortunes of Spain in the conflict...

and given the name Isla Redonda, meaning "round".