Currently available on 2 streaming services.

Kamp Koral: SpongeBob's Under Years - watch online: stream, buy or rent

Currently you are able to watch "Kamp Koral: SpongeBob's Under Years" streaming on Viaplay, SkyShowtime.

Cast

Tom Kenny
SpongeBob SquarePants (voice)
Bill Fagerbakke
Patrick Star (voice)
Rodger Bumpass
Squidward Tentacles (voice)
Clancy Brown
Eugene H. Krabs (voice)
Carolyn Lawrence
Sandy Cheeks (voice)
Mr. Lawrence
Sheldon J. Plankton (voice)
Lori Alan
Pearl Krabs (voice)
Mary Jo Catlett
Mrs. Puff (voice)