Moira Fay

And what kind of equipment do you need for open water swimming?

How does open water swimming compare to swimming in a lake?

I noticed there was a swan quite close to you there a little bit earlier.

Where is the triathlon at the weekend and how far do you have to swim?

How are you feeling about that distance?

Do you find that open water swimming gives you a bit of calmness, a bit of zen?

Well, despite the name, the EPA's website beaches.ie just doesn't cover beaches.

It also provides up-to-date information on water quality at lakes across Ireland.

So including pollution alerts, swimming advisories and official bathing water ratings.

But the key message from everyone I spoke to is safety first.

never swim alone, know your limits and always follow local guidance.

So these towers were built at a time when Ireland was part of the British Empire and they were built to defend against naval attacks and invasions during the Napoleonic Wars.

Of course, these invasions never happened.

I spoke to Dr. Jason Bolton, an expert in Martello Towers and author of the book, The Martello Towers of Dublin.

He told me a little bit about the history of the Sandymount Tower and how these towers came to be passed out of military hands into private ownership.

So selling agents Colliers have put it on the market at a guide price of 1.5 million euro.

The property is 617 square metres in size over three levels and is in need of a full and substantial refurbishment.

The property is designated as Amenity Open Space Green Network under the Local Area Development Plan and it's also listed by Dublin City Council as a protected structure and as a national monument.

Fine Gael TD for Dublin Bay South James Gagan spoke last week in the Dáil about his concerns for the Tower's future.

I met him at the Martello Tower and asked him what exactly was he calling for in relation to its future.