Ferries laden with tourists exploring south Sydney's Botany Bay are set to take to the seas under a new proposal floated by NSW Transport.

The ferries will ply the waters between Kurnell and La Perouse under a $17 million draft plan to encourage tourists to spend more time enjoying the historic area.

There would also be services for commuters, while options to expand the service to the airport have been flagged in the feasibility study.

If the plan succeeds this won't be the first time ferries traverse the entrance, with boats running for almost 60 years before a storm bought the service to a halt when crucial jetties were destroyed in 1974.

These jetties would be re-built under the plan and would be open to recreational fishers and commercial ventures.

The ferries would improve access to the historic meeting place between the Aboriginal peoples of Botany Bay and the 1770 expedition of Captain James Cook.

The plan aims to have the ferries running for the 250th anniversary of the meeting in 2020.

Extra car parks on both sides of the entrance are planned to help with the increase in visitor numbers.

Members of the community can provide their feedback on the proposal to Transport NSW.