If you're adventurous then why not enter the same surroundings as the Great White Shark! Don't worry, they'll be a cage between you and razor charp teeth of the sharks. Boats leave Gans Bay in the morning and takes 15-20 minutes to reach the waters between Geyser and Dyer islands. The boat then drops anchor and you'll spend between 4 and 5 hours shark watching.
Although trips run throughout the year, May through October is considered the best time to dive due to the large numbers of Cape Fur Seals which inhabit Dyer Island.