I have one on the inside of my left wrist, but it I went for something substantial size wise because I wanted something really noticeable - a few years ago I was severely depressed and suicidal - so this tattoo is just a reminder that I lived through it and that I will be ok:
That is my forearm, I would say it goes about half way up - for me the closer it got to the wrist the more it hurt - but it was 100% worth it, I absolutely love it. I guess I would say it would be easy to hide in the winter with long sleeves... but honestly I've never had the need to