On one of our first evenings in Gotland we went to a beach. Really, since it's an island, most of it is coast line. But, we're staying near the center of the island, so we had to make the arduous drive of 10-15 minutes...
The Baltic is supposedly a small, calm sea. But for a landlubber like myself the endless expanse to the horizon is impressive, and the small waves breaking are enough to make me wary of wandering out too far!
Also, that water? Fucking cold. Not like, nice on a hot day cool, simply freakin' cold.
But those waves, even if they aren't a pounding Pacific surf, have carved the cliffs and sea stacks around the island. Millenniums of ocean breezes and tides have shaped impressive drops and limestone pillars.