From Bulbapedia, the community-driven Pokémon encyclopedia.
The Marina Group are a troupe of traveling entertainers that appeared in Pokémon Ranger and the Temple of the Sea. Ship helps plan the family's water shows, but does not perform in them. Kyle, his wife Meredith and daughter Lizabeth perform in the group's Underwater Pokémon Shows alongside their Water Pokémon.
The group are also direct decedents of the People of the Water, and continue to be custodians of the ancient culture. This led Pokémon Ranger Jack Walker to temporarily join the troupe and perform as a clown while he tried to safely transport the Manaphy Egg back to Samiya.
In the anime
| Dewgong participates in the Marina Group's Underwater Shows. Its streamlined body makes for an elegant performance. Kyle later used Dewgong to reach an ancient People of the Water ruin site.
None of Dewgong's moves are known.
|| Pokémon Ranger and the Temple of the Sea
In the manga
The Marina Group appears in the manga adaptation of the movie fulfilling the same role as they do in the anime.