Poole lifeboats were launched at 11.30pm (Wednesday August 3) to a report of a person in the water off Hamworthy Park.
The D class was tasked initially and arrived on scene to conduct a search, Dorset Police were shoreside alongside Poole Coastguard Rescue Team and other units. The Atlantic was also tasked and a search and rescue helicopter.
The lifeboats began searching from the shoreline, stepping out every leg, and an extensive search ensued.
Information then came from the shore that cries for help had been heard and a bicycle was found on the beach, this was used as a datum point to intensify the search and then the volunteer coastguard unit on the shore spotted a speck of light.
The D Class found the casualty 400 metres off the beach.
The lifeboat crew swiftly transferred the casualty to the care of the South Western Ambulance Service who were standing by on the beach, the ambulance took the casualty to hospital.
The lifeboats returned to station, they were refuelled and had a wash down, they were ready for service and the volunteer crew for their beds at 4.30am.
Key facts about the RNLI
The RNLI charity saves lives at sea. Its volunteers provide a 24-hour search and rescue service around the United Kingdom and Republic of Ireland coasts. The RNLI operates 238 lifeboat stations in the UK and Ireland and more than 240 lifeguard units on beaches around the UK and Channel Islands. The RNLI is independent of Coastguard and government and depends on voluntary donations and legacies to maintain its rescue service. Since the RNLI was founded in 1824, its lifeboat crews and lifeguards have saved over 142,700 lives.
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Contacting the RNLI - public enquiries
Members of the public may contact the RNLI on 0300 300 9990 (UK) or 1800 991802 (Ireland) or by email.