The last film in the series of underwater adventures.
The Hawaiian Islands. A whale shark looms out of the blue, dwarfing divers
Martha Holmes and Mike de Gruy. It's a moment of high drama, a breathtaking encounter with the biggest fish in the ocean. But the intrepid pair came to these Pacific islands to track down another heavyweight - the humpback whale. Surrounded by the mysterious sound of singing whales, their hopes rise. Their persistence pays off when a 35-ton mother with a newborn baby lingers quite unconcerned in front of the camera. For the divers it's the highlight of an eventful trip, and a fitting finale to the Sea Trek voyages. Producer Robin Hellier
0 TELETEXT SUBTITLES: page 888
0 BBC BOOK: £ 16.95. from booksellers. 0 BBC WILDLIFE MAGAZINE: November issue includes a guide to the world's best dive sites, a chance to win a diving holiday at one of them; plus Martha Holmes 's
"Seatrek" diary, f 1.75. from newsagents. 0 NATURE: page 8