379085 02: Prince Philippe, front right, and Princess Mathilde, rear left, of Belgium and Prince Naruhito and Princess Masako visited Kasai seaside aquarium on September 26, 2000 in Japan. Prince Philippe and Princess Mathilde of Belgium are making a private visit in Japan from September 24 till September 27, 2000. (Photo by Koichi Kamoshida/Liaison)

379085 02: Prince Philippe, front right, and Princess Mathilde, rear left, of Belgium and Prince Naruhito and Princess Masako visited Kasai seaside aquarium on September 26, 2000 in Japan. Prince Philippe and Princess Mathilde of Belgium are making a private visit in Japan from September 24 till September 27, 2000. (Photo by Koichi Kamoshida/Liaison)