Sailors along Singapore's shipping channels may have wondered yesterday if there were dolphins in the area. Eighteen swimmers aged between 15 and 60 had a splashing good time as they swam 4km from Lazarus Island - an offshore island south of Singapore - to Sentosa's Siloso Beach. Their swim helped to raise $55,000 for eldercare facilities Lions Home for the Elders and Lions Befrienders. Yesterday's event was part of a series of fund-raisers organised by the non-profit Lions Club of Singapore. Organising chairman Trevor Xie, who was one of the swimmers, said: "We pushed ourselves to the limit to complete the swim in one of the busiest shipping channels in Singapore with strong currents... We are very happy to complete this event to raise funds for charity."