Dramatic moment six children and three adults had to be rescued from Cornwall gully when they got trapped Group stranded in North Cornwall when gully quickly filled with water Huddled together on a rocky platform near a deep cave on the beach At risk of being swept off as it was too dangerous to try to leave gully Six children aged from seven to 12 and three adults were rescued by lifeguards after getting trapped in a gully on a popular family beach. The group became stranded in Treyarnon, North Cornwall, when the gully they were in quickly filled with water as the tide came in - with a solid 5ft swell washing through. They huddled together on a rocky platform near a deep cave on the beach but were at risk of being swept off - and as it was too dangerous for them to try to leave the gully, lifeguards were called. Scroll down to watch dramatic video from the rescue Got you: RNLI crew rescue one of the nine people trapped on a gully on a beach in North Cornwall yesterday Pointed out: RNLI lifeguards are seen approaching as one of the stranded victims (circled) waits for help on rocks The conditions meant neither lifeboats nor paddleboards could be used, so lifeguards had to swim each member of the group to safety. VIDEO Lifeguards rescue nine people off Cornish coast Senior RNLI lifeguard Martin White spotted the stricken group with RNLI lifeguard Andy Houlder, who called for back-up from RNLI lifeguards Zahli Lowe and Dan Lee. Mr White said: "Because of the shape of the gully and the size of the swell, it was impossible to get the inshore rescue boat (IRB) or even the rescue board in close enough to pick up the casualties so the only way was to swim in. Myself and Andy swam in with rescue tubes, and communicated with Zahli and Dan who were standing off in the IRB. They could see when a set of waves was coming through so we could time our exit in the lull between sets. On board: The three adults and six youngsters aged between seven and 12 were at Treyarnon in Cornwall Help: The conditions meant neither lifeboats nor paddleboards could be used, so lifeguards had to swim each member of the group to safety We swam two children out first, with a dad who was helping another child. It was a very difficult and long process, made even worse by the time pressures of the incoming tide and a building swell Martin White, senior RNLI lifeguard We dropped them off at the beach 15 metres (50ft) away and returned for the second group. We repeated the process with the other three children and one of the adults who was a stronger swimmer helping one of the children. Andy returned to help the final adult, dropping them off at the IRB. It was a very difficult and long process, made even worse by the time pressures of the incoming tide and a building swell. Teamwork: Senior RNLI lifeguard Martin White spotted the stricken group with RNLI lifeguard Andy Houlder, who called for back-up from RNLI lifeguards Zahli Lowe and Dan Lee Packed: The RNLI said yesterday was an 'extremely busy day' for lifeguards on the beach (file picture), with 200 people in the water at Treyarnon Thankfully we all know this beach and stretch of coastline very well and were able to read the waves and get them all out safely. Thankfully we all know this beach and stretch of coastline very well and were able to read the waves and get them all out safely Mr White said lifeguards had just rescued two people in a kayak who had been washed into a nearby cove when they were alerted to the stranded group huddled together on the rocky platform above the gully, which was quickly filling with the incoming tide. He said the gully has a deep cave at the back, so the only way out was the way the group had gone in. The RNLI said yesterday was an "extremely busy day" for lifeguards on the beach, with 200 people in the water at Treyarnon.