Milltown is home to three neolithic portal tombs that are about 6000 years old and one of them can be found just five minutes from the centre of Milltown in Killaclohane Forest. This easy route will take you on a stroll through thousands of years of Irish history, from the neolithic period to the time of the Penal Laws.

Dating to the Neolithic period around 3800 BC, the Killaclohane portal tombs are the earliest extant burial structures in Ireland and were built at a time when human beings began a transition from a hunter-gatherer way of life to a culture based around farming. Excavation of one of the tombs revealed pottery fragments from the earliest class of pottery in Ireland as well as flint arrowheads and knives, suggesting that the burial site was in regular use for hundreds of years.

Along the walking path, you will also come to Carrig an Aifrinn, which literally means Stone Church. This was a Mass Rock in the 17th century when the British colonial forces outlawed Catholicism. People gathered here to practice their Catholic Faith in secret. Two priests caught holding mass here in 1651 were executed.

The path also has an ogham stone, which is a stone inscribed with a series of lines representing each letter of the alphabet and is the earliest writing system in the Irish language dating back to the 4th century. Kerry has the highest concentration of ogham stones in Ireland.