Police spokeswoman Diane Drayton said Monday the two men were found last week on the closed premises of the Dolphin Discovery facility on the main island of Tortola.
The manager of the park, Emmanuel Gilbert, said he believes the two men were animal-rights activists.
Police, however, declined to offer a possible motive, citing an ongoing investigation.
The two men, Phillipe Lamoureax, 41, and Alain Tremblay, 44, have been charged with criminal trespass and damage, and face fines of $5,700.
The hometowns of the men were not disclosed and it was not immediately known if they have lawyers.