The area is naturally shallow but the Fison Channel has been dredged to provide access for vehicular ferries which connect Cleveland to Dunwich on North Stradbroke Island.

[5] The marine and coastal area around the harbour are situated within internationally-significant wetlands, forming part of the Moreton Bay Ramsar site.

[12] This proposal has been opposed by marine planning experts[13] and various environmentally concerned community groups including Wildlife Queensland - Bayside Branch.

[16] Inclement prevailing winds, traffic bottlenecking, flooding, site pollution, significant environmental complications and native title uncertainty are some of the risks identified for any real estate development in the Toondah Harbour area.

[19] On 19 March the Council decided to ask the Queensland Government to make some changes to the plan which include reducing building heights from 15 storeys to 10 and a 400-berth marina at Toondah Harbour instead of 800 berths.