Why it's normal to see seals on our beaches

It's not uncommon for these fascinating creatures to catch the eye of beachgoers, especially when they appear to be just floating there. Understandably, this can lead to some concern - many people assume the seal might be sick or in distress. But in most cases, there's no need to worry.

What you're witnessing is a behaviour called thermoregulation, and it's a completely normal and healthy activity for seals. Let's dive into what thermoregulation is and why these seals are perfectly fine when you see them in our waters.

What is thermoregulation?

Seals, like us, need to manage their body temperature to stay comfortable. When they float in the shallows with one or more of their flippers in the air, they're often regulating their body temperature. Seals have many blood vessels in their flippers that sit just under the surface of the skin. Exposing their flippers to the air allows heat to either be absorbed from the environment to warm them up or to release heat to cool them down.

You might notice that some seals look like they’re simply chilling out, while others might appear a bit lethargic. This is all part of their natural process. Just like how we might seek shade on a hot day or bundle up when it’s cold, seals have their own ways of staying comfortable.

Why do they choose our beaches?

Adelaide's metro beaches provide an ideal spot for seals to rest and thermoregulate. The sandy shores and relatively calm waters make it easier for them to relax and rest. It’s a bit like how we might choose a favourite spot to unwind—seals just happen to pick our beautiful beaches!

Should you be concerned?

We often receive calls from well-meaning beachgoers who are worried about these seals, and we’re grateful for the community's care for our wildlife. However, in most cases, these seals are not sick; they're simply engaging in their natural behaviour.

Seals are a protected species under the National Parks and Wildlife Act 1972. It’s important to give them space to rest and avoid disturbing them. Keep your distance, admire them from afar, and let them continue their day in peace. You must not approach a seal closer than 30m on land or 30m when swimming. Additional restrictions apply to jetskis, motorised vessels, sail boats, kayaks and paddleboards.

If you do see a seal that seems to be injured or in obvious distress, you can contact your local National Parks and Wildlife Duty Officer. But rest assured, seeing seals in our waters particularly during cooler months, is usually just a sign that they’re taking care of themselves—not that they need us to intervene.

So next time you see a long-nosed fur seal, take a moment to appreciate the unique glimpse into their world. It’s a reminder of the incredible wildlife we share our coastline with and the importance of understanding and respecting their natural behaviours.