A dad and his two children have been rescued, after getting cut off at Whitsand Bay.
Later on Sunday, lifeguards were called to help three climbers, stuck on a ledge about Freathy.
Chris Wafer, RNLI Lifeguard Supervisor said: "The lifeguards were mainly providing safety advise to beach goers and dealing with a host of minor first aids including cuts and scrapes.
"However on Sunday, the lifeguards rescued a father and his two boys when they were cut off from the tide. They were in a cove between Tregantle and Sharrow beaches and were spotted by RNLI lifeguards Beau Gillett and Aidan Hetherington during a routine patrol of the area at around 11am.
"The cove would have remained cut off until around 4pm so they would have had a long wait! We’d always advise anyone who intends to venture away from the main lifeguarded area of the beach to check the tide times first."
A couple of hours later, the charity’s lifeguards were tasked to assist the volunteer Coastguard Cliff Rescue teams from Looe and Torpoint to locate three people who were stuck up the cliff at Freathy beach.
It is thought the three had attempted to climb the cliff when they had got cut off by the tide.
RNLI lifeguards Aidan Hetherington and Terry Dungay launched the Inshore Rescue Boat from Tregantle beach and located them on a ledge halfway up.
The lifeguards stood off the climber’s location as a marker for the cliff rescue teams to make their descent. Once the cliff teams were with the climbers, the lifeguards bought the boat in closer to act as safety cover should anyone fall.
The trio were winched up the cliff to safety.
You can watch the rescues here...