Athaitha's Tides

The Athaitha is one of the main 4 oceans of Pangella--common knowledge I know, but it's important to understand what exactly The Athaitha is so it's tides are properly appreciated. So, the Athaitha is one of the 4 main oceans, it is the largest of the oceans, and it has the largest temperature dispursion, meaning losts of colliding currents, wind tunnels, and large waves.
That is The Athaintha at the most basic.

Winds, Currents, and Tides

So now, we discuss the tides. Tides are, at their most basic, the push and pull of the moons on the waters, like a gently tipping glass. In Athaitha's case, these tides are...aided by the intensity of its currents. Currents are cause by wind and water density for the most part (which are both often casued by temperature difference). With the enlarged differences in Athaitha's upper and lower waters and the general direction in which those temperatures moved, they tended to collide along the coast.
With that, then the coast too on a particular beating with intense tidal fluctuation all along the Athaithan cost.

The Danger Zone

For the most part, this all just means that theres a very high tide and a very low tide and a lot of big waves. However, at the center of the Athiatha where the two currents collide and the winds mindle, it can get rather dangerous. this place is Sidhaor, a peninsula off The Eastern Glades. Here, the tides practically swallow the majority of Sidhaor at high tide. Waves slam into both sides, and the drastic change in temperatures can cause massive storms that ping-pong from one front to the next. It's rather unpleasant.
Thankfully, the intensity is typically reserved for the height of summer and depth of winter when the tepmeratures--and therefore the winds--are at their height.

Type

Natural

The Main Problem

If it were just about intense, wildly fluctuating tides, people could move inland and simply visit the beach whenever they want too--not a problem. Especially not for farming folk that like to don't much like entertainment. However, every year, bit by bit, there seems to be less and less "inland". The tides are rising, or maybe the land is sinking. At this point, it's only a matter of time before the Athaitha swallows the eastern coast.
Combine that with the steady rainfall and, durring the height of storm season, its very hard to find anywhere not at least a little damp.