The performance of a three million pound ($NZ6.2m) New Zealand-built artificial surf reef at a British tourist beach has been sub-standard, according to Bournemouth Borough Council. Experts at Plymouth University assessed the quality of waves enhanced by the underwater creation over six months, and found the reef achieved only four of its 11 objectives. The installation uses 55 sand-filled “geotextile bags” placed 225m out to sea. The criticism conflicts with some early reports from lifeguards about the waves being dangerous.