Rady Children's Hospital patient 10-year-old Jayden Skorpanich meets a bottlenose dolphin after Sea World invited patients to swim and interact with the dolphins at their park in San Diego, California August 27, 2015. Sea World has hosted Dolphin Interaction Program for seven years. It was started by dolphin trainer Joy Soto who battled and overcame non-Hodgkin’s lymphoma. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital hug a bottlenose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

A young patient from Rady Children's Hospital directs a bottlenose dolphin to spin around after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital are sprayed with water by a bottlenose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital watch as a bottlenose dolphin jumps, after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

A patient from Rady Children's Hospital feeds a bottlenose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Heart transplant patient Eric Montano kisses a bottlenose dolphin after patients from Rady Children's Hospital were invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital meet a bottlenose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Rady Children's Hospital patient 10-year-old Jayden Skorpanich greets a bottlenose dolphin with trainer Joy Soto after Sea World invited patients to swim and interact with the dolphins at their park in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Rady Children's Hospital patient 10-year-old Jayden Skorpanich meets a bottlenose dolphin after Sea World invited patients to swim and interact with the dolphins at their park in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital wave goodbye to a bottle nose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Senior dolphin trainer Joy Soto introduces patients from Rady Children's Hospital to a bottlenose dolphin after the children were invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Rady Children's Hospital patient 10-year-old Jayden Skorpanich gets a ride on a bottlenose dolphin after Sea World invited patients to swim and interact with the dolphins at their park in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital watch as a bottlenose dolphin jumps, after they were invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)

Patients from Rady Children's Hospital touch the dorsal fin of a bottlenose dolphin after being invited to swim and interact with dolphins at Sea World in San Diego, California August 27, 2015. (Photo by Mike Blake/Reuters)