Marine Big 5 Daily Blog 18 December
Written by December 18 2025
Whale Watching near Cape Town, South Africa – Welcome to Gansbaai, home of the Marine Big 5.
Trip Summary 18 December 2025:
Today was one of those truly beautiful days out at sea with Marine Dynamics. The sun was out, the air felt fresh, and the sightings were just as great. Cruising along the coastline, we were treated to a surprising and special sighting of the Indian Ocean humpback dolphins moving gracefully near the shark diving vessels. We paused near the shark diving vessel to take in the moment and scan the waters where the bronze whaler sharks emerged, showing off their bronze colouring near the diving cage. Heading out into deeper waters, something truly unforgettable happened. A Bryde’s whale was spotted. Known for being shy, elusive, and often keeping their distance, this individual did the opposite, approaching the boat and offering a rare, close encounter, which was an incredibly jaw-dropping moment. Closing the day on a peaceful note, a final stop was made near Geyser Rock and Dyer Island.
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What species did we see today?
African Penguin African Penguin
As one of only 17 penguin species left in the world (and the only one on the african continent), the african penguin often breed in offshore colonies, such as Dyer Island.
Brydes Whale Brydes Whale
The mysterious Bryde's whales visit the Dyer Island area throughout the year, with most sightings occurring during summer into winter.
Bronze Whaler Shark Bronze Whaler Shark
The Bronze whaler (also known as Copper sharks) here in Kleinbaai are very curious and interactive. These sharks eat mostly fish, with sardines being one of their favourites.
Cape fur seal Cape fur seal
With a local population of 60,000, it's no wonder our guests capture so many photographs of these wonderfully playful marine mammals.
Indian Ocean Humpback Dolphin Indian Ocean Humpback Dolphin
Humpback dolphins are an endangered species, with small populations living very close to shore, typically in water less than 25m deep and an average home range of 120km. Their proximity to land makes these animals particularly vulnerable to human influence.
