Tranby (Peninsula Farm) is an historic farmers cottage located on Johnson Road in Maylands overlooking the Swan River opposite Kuljak Island, and is one of the oldest surviving buildings from the early settlement of the Swan River Colony. It is described as an English cottage-style farmhouse with loft bedrooms and wide verandahs and is associated with a group of devout Wesleyan Methodists, led by Joseph Hardey and other members of his family, who arrived in Western Australia on the ship Tranby in February 1830.

Kuljak Island, also known as Black Swan Island, is an artificial island in the Swan River. Situated between Ron Courtney Island upstream and Heirisson Island downstream, Kuljak Island is east of Maylands Peninsula and south of Garratt Road Bridge. Kuljak Island is surrounded by a number of smaller, also artificial, islets, and is entirely within the boundaries of the suburb of Ascot.