A peaceful place can be described in Engpsh as "serene", "tranquil", or "calm". Here are some examples:

"The beach was a serene spot, with gently crashing waves and soft sand beneath my feet."
"The mountain retreat was a tranquil oasis, surrounded by towering trees and crisp, clean air."
"We found a quiet, calm spot by the river to sit and watch the sunset."

You can use these words to describe any place that feels peaceful and relaxing, such as a natural setting, a quiet neighborhood, or even a peaceful room inside a building.