The incident happened on Lower Walk on the Promenade.
Emergency crews from across the Fylde Coast attended an incident involving a 40 year old male who had fallen approximately 12 feet on to rocks sustaining serious head injuries.
On the fire service's initial arrival, the man was found to be unconscious but breathing so crews secured his position and stabilised his condition whilst awaiting the arrival of the North West Air Ambulance and also the North West Ambulance Service.
The Air Ambulance landed shortly after at the go-cart track on the promenade and paramedics were guided to the casualty.
The decision was made to use a stretcher to transport the casualty down the remaining 30 feet to the waiting ambulance.
He was then taken to Preston Hospital for assessment and treatment.
A spokesperson for Lancashire Fire and Rescue said:
"Luckily for the casualty the Fire Service had been carrying out an exercise close to the incident so where able to make a rapid attendance and worked closely in conjunction with NWAS, NWAA, Lancs Constab and HM Coast Guard."
The man remains in hospital.