Some of the centres claim sonar signals “activate brain cells” if children touch heads with the mammals.
Staff at one waterpark visited by the Sunday People even claimed children unable to speak had uttered their first words after contact with dolphins.
Dozens of other parks offer services online – some claiming therapy can beat cancer and aid people with Down’s syndrome, cerebral palsy and post-traumatic stress disorder.
The centres, which also host cruel dolphin shows, charge people up to £2,500, assuring parents that their child will see significant benefits. […]