A swim in winter...

We had our first swim in the ocean in six weeks today... just a dinky little one along Mona Vale beach to the cliffs, then we walked back along the sand. Felt good. We don't get enough exercise in winter, but this gave us a 1.6km swim and about an 800 metre walk back. We spend too much time sitting at a desk as a rule. Anyway, we had our new old GPS in a rubber bag sticky-taped onto our noggins, and here's where we went...

And here are a few mugs heading out through the rip by the rocks at Mona Vale...

Where have you been swimming n winter? Tell us... click the comments button below...

Sink or Swim - Buoyancy in Salt Water & Fresh Water

An interesting question from Chicago Sandy on this blog ...
"I know that salt water = high buoyancy = faster time, but wondering if anybody has done both and would like to comment."

Comment:
I would say anything that improves a swimmers buoyancy will result in faster times, as less energy is wasted maintaining the swimmers body position on top of the water

Swimmers in salt water, or wearing wetsuits, or with more body fat (or lower bone density) will float better

The extent to which a times will improve in salt water vs. fresh water will vary with a swimmers body shape and technique

I am fairly unsinkable in the ocean. I haven't yet figured out why

I might throw it over to one of the swimming nerds on this forum to explain the science