Where was Frodo most at peace?

[Huinesoron]

I'm working on a fanfic, and want to evoke the place Frodo found the most peace or rest after Weathertop. I was going to use the Shire, but that's wrong: Sam found peace in the restored Shire, but Frodo didn't, not really. I'm assuming Lorien or Rivendell, but I don't really know.

Before anyone starts: yes, the correct answer is Eressëa, but given that's where the scene actually takes place, I can't really evoke it within the scene. (If I have to I'll go back to BoLT and use some of the Kortirion description, but I'd prefer something specific to Frodo.)

hS