Normally I would tell you diving , at 30-60 feet down , drifting with current in a reef , looking at the corals and fish swimming around could give you that peace , especially when u hear nothing ... works for me
But ... if its a place to spend a weekend or a week or so... there are several
If budget isn't a problem id have to say Greece overlooking the cliffs and Ocean "priceless", and passing by for some olive oil

, Spanish coast or the Italian provinces are nice ... where all u do it sit in a small walkway overlooking the ocean with amazing cheap wine and the food Mmmmm great too
Locally, I'd have to say from the pics i've seen Batanes
Note these are places that are peaceful that make you forget about the stress of the world
my 2 cents