SalsaBoston.com Message Board 
Posted by Kato Paul W. on November 20, 2008 at 02:39:10:
Hey! salsa dancer. Check out BOCA Club in Waltham on Moody street. There're FREE private lesson offer every Wednesday night. Just show up at 7-8 pm, and learn salsa basic and turns for FREE >. Instructor will teach you on the spot and get you started. One on one lesson, (but please don't hog him or her to yourself, let others have their's turn too.)
If you are intermediate or advanced dancer, you are also welcome. Instructor will have a dance with you so you can get your practice on. If you have a weak spot any where in your dancing, advice will be given. Again... it free!
The food is great there, south American cuisine " A taste of Costa Rica". Yum
The drinks are at reasonable price.
Great place to eat, meet, and dance.
Have fun, dance, you only live once.