I mentioned to a swimming friend who is married to a shark fisherman that I was planning to go snorkelling at Little Henty Reef. “Shark Alley!” was her response, albeit with a smile. Well, there is a seal colony (non-breeding) on one of the higher exposed sections of the reef. But surfers surf this reef, kayakers regularly paddle around it and there are often swimmers in the shallows. I have also heard that local snorkellers are happy to swim at this location. I asked around. I concluded it was a reasonable thing to snorkel on the inner reef, in appropriately calm conditions between tides. I see no reason why this water should be any more ‘sharky’ than the other places where I swim in this area.
The Marengo Reefs Marine Sanctuary is a short distance south of Apollo Bay. This protected area encompasses the Little Henty reefs and a total of about 12 hectares of ocean. It is rich in marine life. The reef furthest from shore is permanent home to a colony of about 100 Australian fur seals.
Little Henty Reef is at the southern end of Mounts Bay. Strong tidal currents and rips often surge between the reefs. These reefs are also the first landfall of big swells generated to the south west in the roaring forties. I have seen triple overhead surf on and around these reefs. Snorkelling can only be contemplated in low or no swell conditions, and ideally on or near a low tide. But calm water in this area is never still water. There are always currents of varying direction and force to consider carefully.
I often swim for an hour or more in the ocean at Apollo Bay for the pure enjoyment of it. I don’t feel cold after these swims because I wear a wetsuit. But I found it interesting that even though I wore my winter Patagonia suit on this summer snorkelling excursion, and despite not hurrying my time under the hot outdoor shower when I got home, it took me a while to warm up. I suppose I got colder quicker because snorkelling is a lot less active than swimming non-stop freestyle. I was not back to my normal operating temperature until after my battered flake, two scallops, min chips and a potato cake. Of course no other meal could even be considered after such a swim.
When swimming in southern latitudes near the 40th parallel (38.75°S to be precise), with or without a wetsuit, the hypothermia clock is always ticking.
Just for comparison, these photos were taken about three weeks ago at a location on the Little Henty reefs about 300m from our snorkelling location. This was not a snorkelling day. (For more photos of big swell breaking on and near these reefs, see the post on this blog titled ‘Summer Solstice Swell’, posted 24 December 2019).