Did the ancient Greeks ever climb Mt. Olympus?

When reading various types of Ancient Greek writings, to the best of my recollection, I don't remember any lengthy or even a minor discussion which referred to any group of humans or an individual person climbing Mount Olympus.

For the Ancient Greeks, Mount Olympus was their most sacred place....it was the place where 11 of the 12 main Deities resided-(not including, Hades). Perhaps the Ancient Greeks believed that this most sacred of sites, should remain as such and not be challenged by human adventurism....(and folly).

It should be noted that nearly 40 years ago, a team of Greek Archeologists literally unearthed the Ancient Greek city of Dion, at the foot of Mount Olympus. The archeological site of Dion, was a type of mini Pompeii, whose panorama....was the sacred mountain. Dion was apparently founded around the 600's BC/BCE, though was destroyed by an earthquake, followed by invading Goths from the Germanic hinterland 1600 years ago.

King Philip of Macedon, his son, Alexander The Great and even Augustus Caesar, visited the city of Dion. Interestingly, we have no archeological or historical evidence that any of these famous Ancient Leaders ever led a military expedition up the Mountain, nor do we have any archeological or historical evidence that the residents of Dion ever climbed Mount Olympus routinely-(or even infrequently).

Perhaps a further archeological inquiry may provide us with some proof that Ancient Greeks living in Dion-(or elsewhere in Greece proper), climbed Mount Olympus. However, until then, we have no evidence that the Ancient Greeks ever climbed Mount Olympus.

I believe that regardless to common beliefs that there are and where always human beings who want/ed to experience as much as they can/could. So even if there was no historical evidence about it, I find it very unlikely that nobody climbed mount Olympus.

And I do not believe that it was the light headedness that they felt as the presence of the gods. It would not explain why they felt this presence elsewhere too.

But I think that if somebody is a strong believer and has a higher mental imagination and perception, that both of them enforce each other at special locations. With higher mental imagination I also mean the ability to highly abstract thoughts, feelings, emotions, etc. or reduce them to their essence. For example the ability to think about something and entirely capture it without thinking of the describing words or images.

It is comparable to intuitively understanding a program or a mathematical problem without being able to describe it, just in another domain.

You are assuming that the Ancient Greeks believed that their Gods were humanly visible, which is unlikely. Therefore, whether or not they climbed Mount Olympus, the Ancient Greeks would not have expected to visibly see their Gods.

From Classical Myths by Barry B. Powell (a textbook often used in undergrad classics courses):

In other myths, the setting is an obscure place: the underworld, which no one in the real world ever visited; Mount Olympus, which really exists but in myth is the home of the gods; or Crete of a very long time ago.

Also:

The events of divine myth usually take place in a world before or outside the present order where time and space often have different meanings from those familiar to human beings.

Basically, their Gods were there, but not humanly visible. That makes sense.

As to whether or not the Ancient Greeks ever climbed Mount Olympus, some sources say that they did and left offerings there for their Gods, later discovered via archaeological excavation.

The first men to reach the summit (as far as we know) were Frédéric Boissonnas and Daniel Baud-Bovy in 1913. But from the peak Aghios Antonios you get a view of the two highest peaks.

It is impossible to ascertain for sure.

Eleven gods of the Greek major pantheon all lived in various named corners of the mountain. Even Zeus resided on only the second-highest of the many peaks, with the highest, Mytikas, reserved as their meeting pace.) This suggests that the ancient Greeks were familiar with the terrain of the mountain.

The summit height is less than the 10,000 feet altitude where an oxygen supply might be advised, and while technical competency (and helmets) are necessary for a few of the many peaks, ropes are not necessary for any of them. Several of the lesser peaks can be hiked up with only good lungs and strong legs. At least 10,000 climbers/hikers ascend at least one of the peaks every year.

However, the first known ascent of (the peak of) Mt. Olympus was only in 1913.

Just remember - if one is a god, making yourself either scarce or invisible when an inquisitive human comes nosing around is a trivial feat.