Listen out for underwater sounds

Whales and dolphins aren’t the only underwater sounds to listen out for on your swims, try tuning into the rasp of water shifting small stones, the scratch of aquatic insects and even the sound of oxygen bubbles being released by plants as they photosynthesise.

Warm summer waters aren’t just a time and place to get in longer swims. They are also when you might pause and float to listen to sounds underwater.