[6] The Brighton and Seacliff Yacht Club formed in 1919, and later had its clubrooms built in 1927 after land was purchased by Tom Mayfield Hardy.

It became home club to nationally and internationally renowned yachtsmen Sir James Hardy, and in 1966 hosted the 505 World Championships.

[7] Originally landing in 1836, Colonel William Light aboard the Rapid finally scouted somewhere he deemed suitable for settling.

[13] Sand dunes near the shore located North of Seacliff and South of Largs Bay and Osborne, were once used to make camps for dances and ceremonies.

[14] The vast majority have long since been replaced by development, housing and by the Glenelg Wastewater Treatment Plant which was first commissioned in 1933.

[17] The City of Holdfast Bay in 2019 delivered a plan to improve the dunes along the coast including Seacliff.

This includes combating the effects of development, human trampling and weed infestation of the sand dunes.

[20] Proposed methods of management involve breaking the areas of concern into management zones, removing damaging plant species such as weeds from the area, conducting re-vegetation and re-introduction of critical sand dune components which were removed or made missing by human intervention.

[21] These planned efforts outline the aim to improve the population of the endangered Hooded Plover habituating on Seacliff's shores.

Specifically, by introducing continued signage and awareness, temporary fencing, chick shelters and monitoring.

Later in 1950 the clubhouse moved to its current position and in 2011 received a complete rebuild in conjunction with the City of Holdfast Bay and the South Australian Government.

Caution should be taken near the rocks at Seacliff, around the two jetties on the stretch of beach, and in the bar,[clarification needed] where occasional breaks occur leading to an increased water depth.

[31] The top five most common responses other than English from respondents to the 2016 ABS census said they speak; Italian (0.8%), German (0.6%), Swedish (0.4%), Greek (0.4%) and Portuguese (0.4%).