Firth of Tay is a sound

Sound (geography)

In geography a sound or seaway is a large sea or ocean inlet larger than a bay, deeper than a bight and wider than a fjord; or it may be defined as a narrow sea or ocean channel between two bodies of land ....

, 12 miles (19 km) long and 6 miles (10 km) wide, extending in a NW-SE direction between the northeast side of Dundee Island

Dundee Island

Dundee Island is an ice-covered island lying east of the northeastern tip of Antarctic Peninsula and south of Joinville Island.On January 8, 1893, during the Dundee Whaling Expedition, the island was named by Captain Thomas Robertson of the Active and named for the home port, Dundee, Scotland,...

 and the east portion of Joinville Island

Joinville Island

Joinville Island is the largest island of the Joinville Island group, about long in an east-west direction and wide, lying off the northeastern tip of the Antarctic Peninsula, from which it is separated by the Antarctic Sound...

. It merges to the northwest with Active Sound

Active Sound

Active Sound is a sound, averaging wide, extending in an east-northeast direction from Antarctic Sound and joining the Firth of Tay with which it separates Joinville and Dundee Islands. Discovered in 1892–93 by Captain Thomas Robertson of the Dundee whaling expedition. Robertson named the...

 with which it completes the separation of Dundee and Joinville Islands. Discovered in 1892-93 by Captain Thomas Robertson of the Dundee whaling

Whaling

Whaling is the hunting of whales mainly for meat and oil. Its earliest forms date to at least 3000 BC. Various coastal communities have long histories of sustenance whaling and harvesting beached whales...

 expedition and named by him after the Firth of Tay

Firth of Tay

The Firth of Tay is a firth in Scotland between the council areas of Fife, Perth and Kinross, the City of Dundee and Angus, into which Scotland's largest river in terms of flow, the River Tay, empties....

 of Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

.