If you want somewhere very low key, very basic but good try: http://www.yelp.com/biz/nail-designs-bethesda They do gel manicures and may be able to take a group.

Second the recommendation for Aquanails. Been going there for nearly 7 years. You won't be disappointed.

Acquanails on Sangamore Road. They do a great job and it's a good place for groups.

Going out with a few of us this weekend - would like a relaxing place, bethesda preferably, for a manicure and pedicure. one requirement - one of us has a gel manicure. thoughts?