The Iona Sewage Plant is located near the centre of the island and has tours for the public.
The park is mostly visited by birders, as the sewage ponds have attracted many rare shorebirds such as Spoon-billed Sandpiper, Great Knot, and Red-necked Stint.
Two jetties, owned by the Government of Canada,[1] stretch out into the Strait of Georgia from Iona Island.
Recreational visitors may walk or cycle on the twin gravel trails atop and beside the large sewage pipe that stretches the length of the jetty.
The North Arm Jetty, while longer, is not as popular; it is a sandy bar (as opposed to the gravel and concrete structure of Iona Jetty) that stretches towards the northwest, running parallel to the Vancouver shoreline and terminating at the University Endowment Lands, almost directly across from the University of British Columbia campus, and visible from Wreck Beach.