Seahouses Coastguard Rescue Team were alerted at 7.28pm by Humber Coastguard that three people were in difficulty in the water at Beadnell Bay.
During the search the rescue teams were informed that the three people had made it ashore.
A search of the local caravan park was then carried out by both coastguard teams where the casualties were quickly found.
Seahouses Coastguard Rescue Team urged swimmers to remember that the North Sea is cold at any time of year and strong currents can quickly drag people out to sea.
A spokesman for Seahouses Coastguard Rescue Team said: “It was established that the casualties were safe and well although cold, shaken and damp.
"Our checks ensured they were not in any danger but advice was given to seek further medical assistance should they suffer any later symptoms of secondary drowning.
"Great teamwork and thankfully a good outcome.
"Always bear in mind that the North Sea is cold at any time of year and strong currents can quickly drag the most experienced swimmer out to sea in a rapid amount of time.
"If you see someone in trouble on the coast or at sea, dial 999 and ask for the coastguard.”