Locals are being urged to take care around Narrabeen Lagoon after police began investigating three alleged sexual offences against women earlier this week. The incidents, which occurred while women were walking or exercising in the area, include alleged sexual touching and inappropriate sexual comments. Two involved a person on an e-bike, though the descriptions given to police suggest more than one person may be involved. In the first, a woman walking on the Narrabeen Lagoon Trail about 3.55pm on Wednesday 7 October was allegedly approached by a man on an e-bike, who touched her sexually and then rode off. He is described as slim, and was wearing a fluorescent yellow shirt and dark pants. The following afternoon, about 3.15pm on Thursday 8 October, a woman running on...