Sea Island is home to Vancouver International Airport (YVR), a nature conservation area, and a permanent resident population of 814,[1] most of which live in the neighbourhood of Burkeville.

Although it grew to the point of requiring the construction of the island's second elementary school in 1962, airport expansion led to the community being disbanded in 1978.

With investments from the airlines and the Canadian government, and a surcharge on tickets to cover costs, the airport began a significant overhaul in the 1990s.

Grant McConachie Way is the primary east–west artery leading to the main airport terminal, while a significant amount of commuter traffic from Vancouver to Richmond crosses Sea Island north-south via Russ Baker Way.

TransLink also operates one bus on Sea Island, route 412, which connects the YVR South Terminal to Bridgeport Station.

[citation needed] The main goal for management of SICA is to maintain existing populations of wildlife that do not compromise aviation safety.

Sturgeon Bank is a designated wildlife management area located off the west side of the island at the delta front of the Fraser River estuary.

Iona Beach is operated by the Greater Vancouver Regional District, with a focus the protection and study of the native flora and fauna.

Sea Island's south shore features a Canadian Coast Guard station, as well as floatplane docks and a business jet terminal.